ICS and DSL/WiFi Router Integration

Can't seem to find a configuration combination to allow WiFi router connected
laptop to recognize ICS-connected resources - that is, I want to use a
printer on one of my ICS-networked pcs from a wifi-router (DSL) connected
laptop. Anyone got a match?...

In more detail:

ICS network, configured in a logical and physical bus topology, connected
via separate NIC to a Westell 327W router, from which the hardwired network
pcs obtain their Internet connectivity. n-Number of laptops wifi-connected
to same router. ICS network pcs can "see" laptops, but laptops cannot "see"
the pcs.

Hi
Make sure that the Wireless Router is connected and configured as an Access
Point.
The principle is described here,
http://www.ezlan.net/router_AP.html
Jack (MVP-Networking).

"kahuna" <(E-Mail Removed)> wrote in message
news:9CC04F72-5F68-4795-900D-(E-Mail Removed)...
> Can't seem to find a configuration combination to allow WiFi router
> connected
> laptop to recognize ICS-connected resources - that is, I want to use a
> printer on one of my ICS-networked pcs from a wifi-router (DSL) connected
> laptop. Anyone got a match?...
>
> In more detail:
>
> ICS network, configured in a logical and physical bus topology, connected
> via separate NIC to a Westell 327W router, from which the hardwired
> network
> pcs obtain their Internet connectivity. n-Number of laptops
> wifi-connected
> to same router. ICS network pcs can "see" laptops, but laptops cannot
> "see"
> the pcs.
>

Thanks, but tried advice from EZLAN-link (plus permutations), to no avail.
Perhaps my understanding of Access Point needs honing.

As I understand µSoft ICS, it acts as a network address translator - e.g.,
my 10b2 PCs are "seen" as one IP address by the outside world. I can ping
and share resources of the wifi-DSL router-conneced laptops from any of the
10b2 PCs, but not vice-versa.

10b2 NIC of ICS server: 192.168.0.1
Router NIC (of ICS server): DHCP configured (by DSL Router)
Router: DHCP enabled; 192.168.1.1

Any further suggestion would be appreciated.

"Jack (MVP-Networking)." wrote:

> Hi
> Make sure that the Wireless Router is connected and configured as an Access
> Point.
> The principle is described here,
> http://www.ezlan.net/router_AP.html
> Jack (MVP-Networking).
>
> "kahuna" <(E-Mail Removed)> wrote in message
> news:9CC04F72-5F68-4795-900D-(E-Mail Removed)...
> > Can't seem to find a configuration combination to allow WiFi router
> > connected
> > laptop to recognize ICS-connected resources - that is, I want to use a
> > printer on one of my ICS-networked pcs from a wifi-router (DSL) connected
> > laptop. Anyone got a match?...
> >
> > In more detail:
> >
> > ICS network, configured in a logical and physical bus topology, connected
> > via separate NIC to a Westell 327W router, from which the hardwired
> > network
> > pcs obtain their Internet connectivity. n-Number of laptops
> > wifi-connected
> > to same router. ICS network pcs can "see" laptops, but laptops cannot
> > "see"
> > the pcs.
> >
>
>
>

kahuna wrote:
> Thanks, but tried advice from EZLAN-link (plus permutations), to no avail.
> Perhaps my understanding of Access Point needs honing.
>
> As I understand µSoft ICS, it acts as a network address translator - e.g.,
> my 10b2 PCs are "seen" as one IP address by the outside world. I can ping
> and share resources of the wifi-DSL router-conneced laptops from any of the
> 10b2 PCs, but not vice-versa.
>
> 10b2 NIC of ICS server: 192.168.0.1
> Router NIC (of ICS server): DHCP configured (by DSL Router)
> Router: DHCP enabled; 192.168.1.1
>
> Any further suggestion would be appreciated.
>
> "Jack (MVP-Networking)." wrote:
>
>> Hi
>> Make sure that the Wireless Router is connected and configured as an Access
>> Point.
>> The principle is described here,
>> http://www.ezlan.net/router_AP.html
>> Jack (MVP-Networking).
>>
>> "kahuna" <(E-Mail Removed)> wrote in message
>> news:9CC04F72-5F68-4795-900D-(E-Mail Removed)...
>>> Can't seem to find a configuration combination to allow WiFi router
>>> connected
>>> laptop to recognize ICS-connected resources - that is, I want to use a
>>> printer on one of my ICS-networked pcs from a wifi-router (DSL) connected
>>> laptop. Anyone got a match?...
>>>
>>> In more detail:
>>>
>>> ICS network, configured in a logical and physical bus topology, connected
>>> via separate NIC to a Westell 327W router, from which the hardwired
>>> network
>>> pcs obtain their Internet connectivity. n-Number of laptops
>>> wifi-connected
>>> to same router. ICS network pcs can "see" laptops, but laptops cannot
>>> "see"
>>> the pcs.
>>>
>>
>>
You have two separate sub-nets. If you check the IP addresses of the
wifi connected laptops, you should see that that they are of the form
192.168.1.x, as assigned by the router's DHCP server. Similarly, the
router's DHCP server should have assigned the NIC in your "ICS server"
to a similar IP address (you left that out of your post).

On the other hand, if you check the IP addresses of the "ICS network"
computers, you should see that they are of the form 192.168.0.x, as
assigned by the ICS IP address allocator.

One way of getting all of your computers to be able to share resources
with one another is to get them all on the same subnet. To do this,
disconnect the router from the broadband modem and instead connect the
broadband modem to the "router NIC" of your "ICS server" computer. Then
"configure the router as an access point." Basically, this means to
disable the router's DHCP server, set the router's _LAN facing_ IP
address to 192.168.0.x, and connect one of the router's _LAN_ ports to
your ICS network.

I assume that you have some sort of switch connected to the "ICS NIC" to
which the "ICS network" computers are connected. By connecting the
router as described above, your are essentially adding a "wireless
switch" in parallel to your wired switch. All of the computers
connected either to the wireless switch (router as access point) or
wired switch will obtain addresses from the ICS allocator; all will be
of the form 192.168.0.x, and all will be able to share resources (once
you have set up file & printer sharing and dealt with permissions and
firewalls, of course).

The main drawback to the above configuration is that it makes your "ICS
server" the bottleneck for ALL of your computers, including your wifi
laptops. You will have to leave this computer on in order for the wifi
laptops to access the Internet, whereas before you didn't have to.

Essentially, what you are doing

--
Lem -- MS-MVP - Networking

To the moon and back with 64 Kbits of RAM and 512 Kbits of ROM.
http://en.wikipedia.org/wiki/Apollo_Guidance_Computer

Thank you Lem (and Jack); I'll pursue that approach in the near future. For
now, the epiphany you allude to (get 'em on the same subnet) and that I had
late last night will suffice:

Left DSL Modem/Router in control of DHCP and DNS (192.168.1.1)

Set my "ICS" 10b2 NIC to 192.168.1.2, default gateway 192.168.1.1

Let the "Router NIC" of my "ICS server" be configured by DSL Modem/Router DHCP

Bridged the "Router" NIC and the "ICS" NIC.

All PCs and wifi-laptops are now communicating and sharing. If I'm not
mistaken, I still have a residual Internet-bottleneck on the 10b2 network (at
the "ICS server"), but the wifi-laptops are independent of this.
Unfortunately, I also no longer have the ICS/NAT protection that used to be
afforded the 10b2 PCs.


"Lem" wrote:

> kahuna wrote:
> > Thanks, but tried advice from EZLAN-link (plus permutations), to no avail.
> > Perhaps my understanding of Access Point needs honing.
> >
> > As I understand µSoft ICS, it acts as a network address translator - e.g.,
> > my 10b2 PCs are "seen" as one IP address by the outside world. I can ping
> > and share resources of the wifi-DSL router-conneced laptops from any of the
> > 10b2 PCs, but not vice-versa.
> >
> > 10b2 NIC of ICS server: 192.168.0.1
> > Router NIC (of ICS server): DHCP configured (by DSL Router)
> > Router: DHCP enabled; 192.168.1.1
> >
> > Any further suggestion would be appreciated.
> >
> > "Jack (MVP-Networking)." wrote:
> >
> >> Hi
> >> Make sure that the Wireless Router is connected and configured as an Access
> >> Point.
> >> The principle is described here,
> >> http://www.ezlan.net/router_AP.html
> >> Jack (MVP-Networking).
> >>
> >> "kahuna" <(E-Mail Removed)> wrote in message
> >> news:9CC04F72-5F68-4795-900D-(E-Mail Removed)...
> >>> Can't seem to find a configuration combination to allow WiFi router
> >>> connected
> >>> laptop to recognize ICS-connected resources - that is, I want to use a
> >>> printer on one of my ICS-networked pcs from a wifi-router (DSL) connected
> >>> laptop. Anyone got a match?...
> >>>
> >>> In more detail:
> >>>
> >>> ICS network, configured in a logical and physical bus topology, connected
> >>> via separate NIC to a Westell 327W router, from which the hardwired
> >>> network
> >>> pcs obtain their Internet connectivity. n-Number of laptops
> >>> wifi-connected
> >>> to same router. ICS network pcs can "see" laptops, but laptops cannot
> >>> "see"
> >>> the pcs.
> >>>
> >>
> >>
> You have two separate sub-nets. If you check the IP addresses of the
> wifi connected laptops, you should see that that they are of the form
> 192.168.1.x, as assigned by the router's DHCP server. Similarly, the
> router's DHCP server should have assigned the NIC in your "ICS server"
> to a similar IP address (you left that out of your post).
>
> On the other hand, if you check the IP addresses of the "ICS network"
> computers, you should see that they are of the form 192.168.0.x, as
> assigned by the ICS IP address allocator.
>
> One way of getting all of your computers to be able to share resources
> with one another is to get them all on the same subnet. To do this,
> disconnect the router from the broadband modem and instead connect the
> broadband modem to the "router NIC" of your "ICS server" computer. Then
> "configure the router as an access point." Basically, this means to
> disable the router's DHCP server, set the router's _LAN facing_ IP
> address to 192.168.0.x, and connect one of the router's _LAN_ ports to
> your ICS network.
>
> I assume that you have some sort of switch connected to the "ICS NIC" to
> which the "ICS network" computers are connected. By connecting the
> router as described above, your are essentially adding a "wireless
> switch" in parallel to your wired switch. All of the computers
> connected either to the wireless switch (router as access point) or
> wired switch will obtain addresses from the ICS allocator; all will be
> of the form 192.168.0.x, and all will be able to share resources (once
> you have set up file & printer sharing and dealt with permissions and
> firewalls, of course).
>
> The main drawback to the above configuration is that it makes your "ICS
> server" the bottleneck for ALL of your computers, including your wifi
> laptops. You will have to leave this computer on in order for the wifi
> laptops to access the Internet, whereas before you didn't have to.
>
> Essentially, what you are doing
>
> --
> Lem -- MS-MVP - Networking
>
> To the moon and back with 64 Kbits of RAM and 512 Kbits of ROM.
> http://en.wikipedia.org/wiki/Apollo_Guidance_Computer
>

Thank you Lem (and Jack); I'll pursue that approach in the near future. For
now, the epiphany you allude to (get 'em on the same subnet) and that I had
late last night will suffice:

Left DSL Modem/Router in control of DHCP and DNS (192.168.1.1)

Set my "ICS" 10b2 NIC to 192.168.1.2, default gateway 192.168.1.1

Let the "Router NIC" of my "ICS server" be configured by DSL Modem/Router DHCP

Bridged the "Router" NIC and the "ICS" NIC.

All PCs and wifi-laptops are now communicating and sharing. If I'm not
mistaken, I still have a residual Internet-bottleneck on the 10b2 network (at
the "ICS server"), but the wifi-laptops are independent of this.
Unfortunately, I also no longer have the ICS/NAT protection that used to be
afforded the 10b2 PCs.


"Lem" wrote:

> kahuna wrote:
> > Thanks, but tried advice from EZLAN-link (plus permutations), to no avail.
> > Perhaps my understanding of Access Point needs honing.
> >
> > As I understand µSoft ICS, it acts as a network address translator - e.g.,
> > my 10b2 PCs are "seen" as one IP address by the outside world. I can ping
> > and share resources of the wifi-DSL router-conneced laptops from any of the
> > 10b2 PCs, but not vice-versa.
> >
> > 10b2 NIC of ICS server: 192.168.0.1
> > Router NIC (of ICS server): DHCP configured (by DSL Router)
> > Router: DHCP enabled; 192.168.1.1
> >
> > Any further suggestion would be appreciated.
> >
> > "Jack (MVP-Networking)." wrote:
> >
> >> Hi
> >> Make sure that the Wireless Router is connected and configured as an Access
> >> Point.
> >> The principle is described here,
> >> http://www.ezlan.net/router_AP.html
> >> Jack (MVP-Networking).
> >>
> >> "kahuna" <(E-Mail Removed)> wrote in message
> >> news:9CC04F72-5F68-4795-900D-(E-Mail Removed)...
> >>> Can't seem to find a configuration combination to allow WiFi router
> >>> connected
> >>> laptop to recognize ICS-connected resources - that is, I want to use a
> >>> printer on one of my ICS-networked pcs from a wifi-router (DSL) connected
> >>> laptop. Anyone got a match?...
> >>>
> >>> In more detail:
> >>>
> >>> ICS network, configured in a logical and physical bus topology, connected
> >>> via separate NIC to a Westell 327W router, from which the hardwired
> >>> network
> >>> pcs obtain their Internet connectivity. n-Number of laptops
> >>> wifi-connected
> >>> to same router. ICS network pcs can "see" laptops, but laptops cannot
> >>> "see"
> >>> the pcs.
> >>>
> >>
> >>
> You have two separate sub-nets. If you check the IP addresses of the
> wifi connected laptops, you should see that that they are of the form
> 192.168.1.x, as assigned by the router's DHCP server. Similarly, the
> router's DHCP server should have assigned the NIC in your "ICS server"
> to a similar IP address (you left that out of your post).
>
> On the other hand, if you check the IP addresses of the "ICS network"
> computers, you should see that they are of the form 192.168.0.x, as
> assigned by the ICS IP address allocator.
>
> One way of getting all of your computers to be able to share resources
> with one another is to get them all on the same subnet. To do this,
> disconnect the router from the broadband modem and instead connect the
> broadband modem to the "router NIC" of your "ICS server" computer. Then
> "configure the router as an access point." Basically, this means to
> disable the router's DHCP server, set the router's _LAN facing_ IP
> address to 192.168.0.x, and connect one of the router's _LAN_ ports to
> your ICS network.
>
> I assume that you have some sort of switch connected to the "ICS NIC" to
> which the "ICS network" computers are connected. By connecting the
> router as described above, your are essentially adding a "wireless
> switch" in parallel to your wired switch. All of the computers
> connected either to the wireless switch (router as access point) or
> wired switch will obtain addresses from the ICS allocator; all will be
> of the form 192.168.0.x, and all will be able to share resources (once
> you have set up file & printer sharing and dealt with permissions and
> firewalls, of course).
>
> The main drawback to the above configuration is that it makes your "ICS
> server" the bottleneck for ALL of your computers, including your wifi
> laptops. You will have to leave this computer on in order for the wifi
> laptops to access the Internet, whereas before you didn't have to.
>
> Essentially, what you are doing
>
> --
> Lem -- MS-MVP - Networking
>
> To the moon and back with 64 Kbits of RAM and 512 Kbits of ROM.
> http://en.wikipedia.org/wiki/Apollo_Guidance_Computer
>

Glad you got things working. You're correct. You bridged the two
networks and no longer are using ICS (or else you wouldn't have been
able to configure the IP address on your "ICS" NIC). However, the
Westell router itself provides NAT services, so your 10b2 computers (the
"ICS network") are protected by that -- at least from the Internet, but
not from the wireless laptops.

If you wanted to spend a little $$, now that you're no longer using ICS,
perhaps you could get a 10base2 to 10baseT (bnc-to-UTP) converter and
connect your 10b2 coax to a LAN port on the router. That way, your "ICS
server" computer is just another client on your LAN and can be turned
off with no effect on the connectivity of the others.

Examples only; no experience one way or the other with such products:
http://www.omnitron-systems.com/prod..._flexpoint.php
http://www.transition.com/Transition...=J/E-CX-TBT-02

kahuna wrote:
> Thank you Lem (and Jack); I'll pursue that approach in the near future. For
> now, the epiphany you allude to (get 'em on the same subnet) and that I had
> late last night will suffice:
>
> Left DSL Modem/Router in control of DHCP and DNS (192.168.1.1)
>
> Set my "ICS" 10b2 NIC to 192.168.1.2, default gateway 192.168.1.1
>
> Let the "Router NIC" of my "ICS server" be configured by DSL Modem/Router DHCP
>
> Bridged the "Router" NIC and the "ICS" NIC.
>
> All PCs and wifi-laptops are now communicating and sharing. If I'm not
> mistaken, I still have a residual Internet-bottleneck on the 10b2 network (at
> the "ICS server"), but the wifi-laptops are independent of this.
> Unfortunately, I also no longer have the ICS/NAT protection that used to be
> afforded the 10b2 PCs.
>
>
> "Lem" wrote:
>
>> kahuna wrote:
>>> Thanks, but tried advice from EZLAN-link (plus permutations), to no avail.
>>> Perhaps my understanding of Access Point needs honing.
>>>
>>> As I understand µSoft ICS, it acts as a network address translator - e.g.,
>>> my 10b2 PCs are "seen" as one IP address by the outside world. I can ping
>>> and share resources of the wifi-DSL router-conneced laptops from any of the
>>> 10b2 PCs, but not vice-versa.
>>>
>>> 10b2 NIC of ICS server: 192.168.0.1
>>> Router NIC (of ICS server): DHCP configured (by DSL Router)
>>> Router: DHCP enabled; 192.168.1.1
>>>
>>> Any further suggestion would be appreciated.
>>>
>>> "Jack (MVP-Networking)." wrote:
>>>
>>>> Hi
>>>> Make sure that the Wireless Router is connected and configured as an Access
>>>> Point.
>>>> The principle is described here,
>>>> http://www.ezlan.net/router_AP.html
>>>> Jack (MVP-Networking).
>>>>
>>>> "kahuna" <(E-Mail Removed)> wrote in message
>>>> news:9CC04F72-5F68-4795-900D-(E-Mail Removed)...
>>>>> Can't seem to find a configuration combination to allow WiFi router
>>>>> connected
>>>>> laptop to recognize ICS-connected resources - that is, I want to use a
>>>>> printer on one of my ICS-networked pcs from a wifi-router (DSL) connected
>>>>> laptop. Anyone got a match?...
>>>>>
>>>>> In more detail:
>>>>>
>>>>> ICS network, configured in a logical and physical bus topology, connected
>>>>> via separate NIC to a Westell 327W router, from which the hardwired
>>>>> network
>>>>> pcs obtain their Internet connectivity. n-Number of laptops
>>>>> wifi-connected
>>>>> to same router. ICS network pcs can "see" laptops, but laptops cannot
>>>>> "see"
>>>>> the pcs.
>>>>>
>>>>
>> You have two separate sub-nets. If you check the IP addresses of the
>> wifi connected laptops, you should see that that they are of the form
>> 192.168.1.x, as assigned by the router's DHCP server. Similarly, the
>> router's DHCP server should have assigned the NIC in your "ICS server"
>> to a similar IP address (you left that out of your post).
>>
>> On the other hand, if you check the IP addresses of the "ICS network"
>> computers, you should see that they are of the form 192.168.0.x, as
>> assigned by the ICS IP address allocator.
>>
>> One way of getting all of your computers to be able to share resources
>> with one another is to get them all on the same subnet. To do this,
>> disconnect the router from the broadband modem and instead connect the
>> broadband modem to the "router NIC" of your "ICS server" computer. Then
>> "configure the router as an access point." Basically, this means to
>> disable the router's DHCP server, set the router's _LAN facing_ IP
>> address to 192.168.0.x, and connect one of the router's _LAN_ ports to
>> your ICS network.
>>
>> I assume that you have some sort of switch connected to the "ICS NIC" to
>> which the "ICS network" computers are connected. By connecting the
>> router as described above, your are essentially adding a "wireless
>> switch" in parallel to your wired switch. All of the computers
>> connected either to the wireless switch (router as access point) or
>> wired switch will obtain addresses from the ICS allocator; all will be
>> of the form 192.168.0.x, and all will be able to share resources (once
>> you have set up file & printer sharing and dealt with permissions and
>> firewalls, of course).
>>
>> The main drawback to the above configuration is that it makes your "ICS
>> server" the bottleneck for ALL of your computers, including your wifi
>> laptops. You will have to leave this computer on in order for the wifi
>> laptops to access the Internet, whereas before you didn't have to.
>>
>> Essentially, what you are doing
>>
>> --
>> Lem -- MS-MVP - Networking
>>
>> To the moon and back with 64 Kbits of RAM and 512 Kbits of ROM.
>> http://en.wikipedia.org/wiki/Apollo_Guidance_Computer
>>


--
Lem MS MVP -- Networking

To the moon and back with 64 Kbits of RAM and 512 Kbits of ROM.
http://en.wikipedia.org/wiki/Apollo_Guidance_Computer

Hmmm... Adding a 10bT/2 media converter would also relieve the (probable)
resistance/bottleneck I have at the bridged NICs. Ya' know, I searched a
couple of years back for such a media converter, but could find none.
Wound-up buying a used hub with 8x UTP and 1x BNC via e-Bay. Thanks for the
links, help and explanations.



"Lem" wrote:

> Glad you got things working. You're correct. You bridged the two
> networks and no longer are using ICS (or else you wouldn't have been
> able to configure the IP address on your "ICS" NIC). However, the
> Westell router itself provides NAT services, so your 10b2 computers (the
> "ICS network") are protected by that -- at least from the Internet, but
> not from the wireless laptops.
>
> If you wanted to spend a little $$, now that you're no longer using ICS,
> perhaps you could get a 10base2 to 10baseT (bnc-to-UTP) converter and
> connect your 10b2 coax to a LAN port on the router. That way, your "ICS
> server" computer is just another client on your LAN and can be turned
> off with no effect on the connectivity of the others.
>
> Examples only; no experience one way or the other with such products:
> http://www.omnitron-systems.com/prod..._flexpoint.php
> http://www.transition.com/Transition...=J/E-CX-TBT-02
>
> kahuna wrote:
> > Thank you Lem (and Jack); I'll pursue that approach in the near future. For
> > now, the epiphany you allude to (get 'em on the same subnet) and that I had
> > late last night will suffice:
> >
> > Left DSL Modem/Router in control of DHCP and DNS (192.168.1.1)
> >
> > Set my "ICS" 10b2 NIC to 192.168.1.2, default gateway 192.168.1.1
> >
> > Let the "Router NIC" of my "ICS server" be configured by DSL Modem/Router DHCP
> >
> > Bridged the "Router" NIC and the "ICS" NIC.
> >
> > All PCs and wifi-laptops are now communicating and sharing. If I'm not
> > mistaken, I still have a residual Internet-bottleneck on the 10b2 network (at
> > the "ICS server"), but the wifi-laptops are independent of this.
> > Unfortunately, I also no longer have the ICS/NAT protection that used to be
> > afforded the 10b2 PCs.
> >
> >
> > "Lem" wrote:
> >
> >> kahuna wrote:
> >>> Thanks, but tried advice from EZLAN-link (plus permutations), to no avail.
> >>> Perhaps my understanding of Access Point needs honing.
> >>>
> >>> As I understand µSoft ICS, it acts as a network address translator - e.g.,
> >>> my 10b2 PCs are "seen" as one IP address by the outside world. I can ping
> >>> and share resources of the wifi-DSL router-conneced laptops from any of the
> >>> 10b2 PCs, but not vice-versa.
> >>>
> >>> 10b2 NIC of ICS server: 192.168.0.1
> >>> Router NIC (of ICS server): DHCP configured (by DSL Router)
> >>> Router: DHCP enabled; 192.168.1.1
> >>>
> >>> Any further suggestion would be appreciated.
> >>>
> >>> "Jack (MVP-Networking)." wrote:
> >>>
> >>>> Hi
> >>>> Make sure that the Wireless Router is connected and configured as an Access
> >>>> Point.
> >>>> The principle is described here,
> >>>> http://www.ezlan.net/router_AP.html
> >>>> Jack (MVP-Networking).
> >>>>
> >>>> "kahuna" <(E-Mail Removed)> wrote in message
> >>>> news:9CC04F72-5F68-4795-900D-(E-Mail Removed)...
> >>>>> Can't seem to find a configuration combination to allow WiFi router
> >>>>> connected
> >>>>> laptop to recognize ICS-connected resources - that is, I want to use a
> >>>>> printer on one of my ICS-networked pcs from a wifi-router (DSL) connected
> >>>>> laptop. Anyone got a match?...
> >>>>>
> >>>>> In more detail:
> >>>>>
> >>>>> ICS network, configured in a logical and physical bus topology, connected
> >>>>> via separate NIC to a Westell 327W router, from which the hardwired
> >>>>> network
> >>>>> pcs obtain their Internet connectivity. n-Number of laptops
> >>>>> wifi-connected
> >>>>> to same router. ICS network pcs can "see" laptops, but laptops cannot
> >>>>> "see"
> >>>>> the pcs.
> >>>>>
> >>>>
> >> You have two separate sub-nets. If you check the IP addresses of the
> >> wifi connected laptops, you should see that that they are of the form
> >> 192.168.1.x, as assigned by the router's DHCP server. Similarly, the
> >> router's DHCP server should have assigned the NIC in your "ICS server"
> >> to a similar IP address (you left that out of your post).
> >>
> >> On the other hand, if you check the IP addresses of the "ICS network"
> >> computers, you should see that they are of the form 192.168.0.x, as
> >> assigned by the ICS IP address allocator.
> >>
> >> One way of getting all of your computers to be able to share resources
> >> with one another is to get them all on the same subnet. To do this,
> >> disconnect the router from the broadband modem and instead connect the
> >> broadband modem to the "router NIC" of your "ICS server" computer. Then
> >> "configure the router as an access point." Basically, this means to
> >> disable the router's DHCP server, set the router's _LAN facing_ IP
> >> address to 192.168.0.x, and connect one of the router's _LAN_ ports to
> >> your ICS network.
> >>
> >> I assume that you have some sort of switch connected to the "ICS NIC" to
> >> which the "ICS network" computers are connected. By connecting the
> >> router as described above, your are essentially adding a "wireless
> >> switch" in parallel to your wired switch. All of the computers
> >> connected either to the wireless switch (router as access point) or
> >> wired switch will obtain addresses from the ICS allocator; all will be
> >> of the form 192.168.0.x, and all will be able to share resources (once
> >> you have set up file & printer sharing and dealt with permissions and
> >> firewalls, of course).
> >>
> >> The main drawback to the above configuration is that it makes your "ICS
> >> server" the bottleneck for ALL of your computers, including your wifi
> >> laptops. You will have to leave this computer on in order for the wifi
> >> laptops to access the Internet, whereas before you didn't have to.
> >>
> >> Essentially, what you are doing
> >>
> >> --
> >> Lem -- MS-MVP - Networking
> >>
> >> To the moon and back with 64 Kbits of RAM and 512 Kbits of ROM.
> >> http://en.wikipedia.org/wiki/Apollo_Guidance_Computer
> >>
>
>
> --
> Lem MS MVP -- Networking
>
> To the moon and back with 64 Kbits of RAM and 512 Kbits of ROM.
> http://en.wikipedia.org/wiki/Apollo_Guidance_Computer
>

kahuna wrote:
> Hmmm... Adding a 10bT/2 media converter would also relieve the (probable)
> resistance/bottleneck I have at the bridged NICs. Ya' know, I searched a
> couple of years back for such a media converter, but could find none.
> Wound-up buying a used hub with 8x UTP and 1x BNC via e-Bay. Thanks for the
> links, help and explanations.
>
>
>
> "Lem" wrote:
>
>> Glad you got things working. You're correct. You bridged the two
>> networks and no longer are using ICS (or else you wouldn't have been
>> able to configure the IP address on your "ICS" NIC). However, the
>> Westell router itself provides NAT services, so your 10b2 computers (the
>> "ICS network") are protected by that -- at least from the Internet, but
>> not from the wireless laptops.
>>
>> If you wanted to spend a little $$, now that you're no longer using ICS,
>> perhaps you could get a 10base2 to 10baseT (bnc-to-UTP) converter and
>> connect your 10b2 coax to a LAN port on the router. That way, your "ICS
>> server" computer is just another client on your LAN and can be turned
>> off with no effect on the connectivity of the others.
>>
>> Examples only; no experience one way or the other with such products:
>> http://www.omnitron-systems.com/prod..._flexpoint.php
>> http://www.transition.com/Transition...=J/E-CX-TBT-02
>>
>> kahuna wrote:
>>> Thank you Lem (and Jack); I'll pursue that approach in the near future. For
>>> now, the epiphany you allude to (get 'em on the same subnet) and that I had
>>> late last night will suffice:
>>>
>>> Left DSL Modem/Router in control of DHCP and DNS (192.168.1.1)
>>>
>>> Set my "ICS" 10b2 NIC to 192.168.1.2, default gateway 192.168.1.1
>>>
>>> Let the "Router NIC" of my "ICS server" be configured by DSL Modem/Router DHCP
>>>
>>> Bridged the "Router" NIC and the "ICS" NIC.
>>>
>>> All PCs and wifi-laptops are now communicating and sharing. If I'm not
>>> mistaken, I still have a residual Internet-bottleneck on the 10b2 network (at
>>> the "ICS server"), but the wifi-laptops are independent of this.
>>> Unfortunately, I also no longer have the ICS/NAT protection that used to be
>>> afforded the 10b2 PCs.
>>>
>>>
>>> "Lem" wrote:
>>>
>>>> kahuna wrote:
>>>>> Thanks, but tried advice from EZLAN-link (plus permutations), to no avail.
>>>>> Perhaps my understanding of Access Point needs honing.
>>>>>
>>>>> As I understand µSoft ICS, it acts as a network address translator - e.g.,
>>>>> my 10b2 PCs are "seen" as one IP address by the outside world. I can ping
>>>>> and share resources of the wifi-DSL router-conneced laptops from any of the
>>>>> 10b2 PCs, but not vice-versa.
>>>>>
>>>>> 10b2 NIC of ICS server: 192.168.0.1
>>>>> Router NIC (of ICS server): DHCP configured (by DSL Router)
>>>>> Router: DHCP enabled; 192.168.1.1
>>>>>
>>>>> Any further suggestion would be appreciated.
>>>>>
>>>>> "Jack (MVP-Networking)." wrote:
>>>>>
>>>>>> Hi
>>>>>> Make sure that the Wireless Router is connected and configured as an Access
>>>>>> Point.
>>>>>> The principle is described here,
>>>>>> http://www.ezlan.net/router_AP.html
>>>>>> Jack (MVP-Networking).
>>>>>>
>>>>>> "kahuna" <(E-Mail Removed)> wrote in message
>>>>>> news:9CC04F72-5F68-4795-900D-(E-Mail Removed)...
>>>>>>> Can't seem to find a configuration combination to allow WiFi router
>>>>>>> connected
>>>>>>> laptop to recognize ICS-connected resources - that is, I want to use a
>>>>>>> printer on one of my ICS-networked pcs from a wifi-router (DSL) connected
>>>>>>> laptop. Anyone got a match?...
>>>>>>>
>>>>>>> In more detail:
>>>>>>>
>>>>>>> ICS network, configured in a logical and physical bus topology, connected
>>>>>>> via separate NIC to a Westell 327W router, from which the hardwired
>>>>>>> network
>>>>>>> pcs obtain their Internet connectivity. n-Number of laptops
>>>>>>> wifi-connected
>>>>>>> to same router. ICS network pcs can "see" laptops, but laptops cannot
>>>>>>> "see"
>>>>>>> the pcs.
>>>>>>>
>>>> You have two separate sub-nets. If you check the IP addresses of the
>>>> wifi connected laptops, you should see that that they are of the form
>>>> 192.168.1.x, as assigned by the router's DHCP server. Similarly, the
>>>> router's DHCP server should have assigned the NIC in your "ICS server"
>>>> to a similar IP address (you left that out of your post).
>>>>
>>>> On the other hand, if you check the IP addresses of the "ICS network"
>>>> computers, you should see that they are of the form 192.168.0.x, as
>>>> assigned by the ICS IP address allocator.
>>>>
>>>> One way of getting all of your computers to be able to share resources
>>>> with one another is to get them all on the same subnet. To do this,
>>>> disconnect the router from the broadband modem and instead connect the
>>>> broadband modem to the "router NIC" of your "ICS server" computer. Then
>>>> "configure the router as an access point." Basically, this means to
>>>> disable the router's DHCP server, set the router's _LAN facing_ IP
>>>> address to 192.168.0.x, and connect one of the router's _LAN_ ports to
>>>> your ICS network.
>>>>
>>>> I assume that you have some sort of switch connected to the "ICS NIC" to
>>>> which the "ICS network" computers are connected. By connecting the
>>>> router as described above, your are essentially adding a "wireless
>>>> switch" in parallel to your wired switch. All of the computers
>>>> connected either to the wireless switch (router as access point) or
>>>> wired switch will obtain addresses from the ICS allocator; all will be
>>>> of the form 192.168.0.x, and all will be able to share resources (once
>>>> you have set up file & printer sharing and dealt with permissions and
>>>> firewalls, of course).
>>>>
>>>> The main drawback to the above configuration is that it makes your "ICS
>>>> server" the bottleneck for ALL of your computers, including your wifi
>>>> laptops. You will have to leave this computer on in order for the wifi
>>>> laptops to access the Internet, whereas before you didn't have to.
>>>>
>>>> Essentially, what you are doing
>>>>
>>>> --
>>>> Lem -- MS-MVP - Networking
>>>>
>>>> To the moon and back with 64 Kbits of RAM and 512 Kbits of ROM.
>>>> http://en.wikipedia.org/wiki/Apollo_Guidance_Computer
>>>>
>>
>> --
>> Lem MS MVP -- Networking
>>
>> To the moon and back with 64 Kbits of RAM and 512 Kbits of ROM.
>> http://en.wikipedia.org/wiki/Apollo_Guidance_Computer
>>
YW.

--
Lem MS MVP -- Networking

To the moon and back with 64 Kbits of RAM and 512 Kbits of ROM.
http://en.wikipedia.org/wiki/Apollo_Guidance_Computer