LAN > WLAN problems - Draytek Vigor

Hi,

I have a Draytek Vigor 2500VG, over a DSL connection. (bridged over a
modem)

Here's my problem:

I have numerous PCs (GNU/Linux and Windows) all with file shares
enabled. Now, from within my LAN I can browse all file-shares perfectly.
The same cant be said from my wifi clients..

From a wifi PC I can browse my network shares, connect fine etc.
However, the moment any LAN based client tries to access a share on my
wi-fi laptop nothing happens. The request just times out. What on
earth is stopping my wifi clients from having their file shares blocked
to anyone within the LAN?

There are no local firewall(s) enabled on my client PCs, ideally i need
to try another router to see if this is the cause of the problem! In
addition to this, the moment I plug an ethernet cable into one of my wi-
fi clients, my file sharing to the laptop (the wifi machine) works
perfectly! So, it's not a configuration problem.

I've run ethereal on the connection and it would appear that the packet
is coming back from the laptop, albeit with a bad checksum (this is
normal though), but no connection is granted. telnet <wifi laptop> 445
just times out. Whereas if I plug in an ethernet cable and do 'telnet
<ether laptop> 445' i get connected!

Just what is going on?

Anyone have any ideas?

Cheers,
Chris

"Chris" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) ...
> Hi,
>
> I have a Draytek Vigor 2500VG, over a DSL connection. (bridged over a
> modem)
>
> Here's my problem:
>
> I have numerous PCs (GNU/Linux and Windows) all with file shares
> enabled. Now, from within my LAN I can browse all file-shares perfectly.
> The same cant be said from my wifi clients..
>
> From a wifi PC I can browse my network shares, connect fine etc.
> However, the moment any LAN based client tries to access a share on my
> wi-fi laptop nothing happens. The request just times out. What on
> earth is stopping my wifi clients from having their file shares blocked
> to anyone within the LAN?
>
> There are no local firewall(s) enabled on my client PCs, ideally i need
> to try another router to see if this is the cause of the problem! In
> addition to this, the moment I plug an ethernet cable into one of my wi-
> fi clients, my file sharing to the laptop (the wifi machine) works
> perfectly! So, it's not a configuration problem.
>
> I've run ethereal on the connection and it would appear that the packet
> is coming back from the laptop, albeit with a bad checksum (this is
> normal though), but no connection is granted. telnet <wifi laptop> 445
> just times out. Whereas if I plug in an ethernet cable and do 'telnet
> <ether laptop> 445' i get connected!
>
> Just what is going on?
>
> Anyone have any ideas?
>
> Cheers,
> Chris

Im having the same problem - eventually i concluded that wifi & lan are
incompatible protocols or my router is marfed.

In article <(E-Mail Removed)>, (E-Mail Removed) says...
> Im having the same problem - eventually i concluded that wifi & lan are
> incompatible protocols or my router is marfed.

Do you have the same router as me? If so, then this is a BUG, and must
be raised with Draytek! The SMB operation works fine using my Netgear
D834G, it's just when using the Vigor in the middle my LAN can't talk to
my WLAN. Strangely, my WLAN can talk to the LAN fine! Just not vice-
versa.

Please can you confirm this is what you are experiencing, and it just
all works when you plug ethernet into your WLAN client? If so, i'll get
a bug raised with Draytek.

Cheers,
Chris

In article <(E-Mail Removed)>,
Chris <(E-Mail Removed)> writes:
> Hi,
>
> I have a Draytek Vigor 2500VG, over a DSL connection. (bridged over a
> modem)
>
> Here's my problem:
>
> I have numerous PCs (GNU/Linux and Windows) all with file shares
> enabled. Now, from within my LAN I can browse all file-shares perfectly.
> The same cant be said from my wifi clients..
>
> From a wifi PC I can browse my network shares, connect fine etc.
> However, the moment any LAN based client tries to access a share on my
> wi-fi laptop nothing happens. The request just times out. What on
> earth is stopping my wifi clients from having their file shares blocked
> to anyone within the LAN?
>
> There are no local firewall(s) enabled on my client PCs, ideally i need
> to try another router to see if this is the cause of the problem! In
> addition to this, the moment I plug an ethernet cable into one of my wi-
> fi clients, my file sharing to the laptop (the wifi machine) works
> perfectly! So, it's not a configuration problem.
>
> I've run ethereal on the connection and it would appear that the packet
> is coming back from the laptop, albeit with a bad checksum (this is
> normal though), but no connection is granted. telnet <wifi laptop> 445
> just times out. Whereas if I plug in an ethernet cable and do 'telnet
> <ether laptop> 445' i get connected!
>
> Just what is going on?
>
> Anyone have any ideas?

Are the LAN and WiFi the same network? I can imagine this would
cause the problem you describe as several of the systems will
have multiple NICs on the same network, and will likely only
use one of them for routing. Different OS's behave in different
ways in such wierd setups.

If you really want multiple networks with multiple routes between
the networks to work transparantly, you're probably going to have
to run a proper routing protocol on the networks.

--
Andrew Gabriel

In article <43caa9dd$0$87293$(E-Mail Removed)>, andrew@a17
says...

[are we ok to remove uk.telcom.mobile from this x-post? It's off-topic
and i shouldn't have originally posted it there, it was a complete
mistake]

> > I've run ethereal on the connection and it would appear that the packet
> > is coming back from the laptop, albeit with a bad checksum (this is
> > normal though), but no connection is granted. telnet <wifi laptop> 445
> > just times out. Whereas if I plug in an ethernet cable and do 'telnet
> > <ether laptop> 445' i get connected!
> >
> > Just what is going on?
> >
> > Anyone have any ideas?
>
> Are the LAN and WiFi the same network?

Hi, appreciate your reply.

They are on the same network, yes. 192.168.2.0/16

> I can imagine this would
> cause the problem you describe as several of the systems will
> have multiple NICs on the same network, and will likely only
> use one of them for routing. Different OS's behave in different
> ways in such wierd setups.

All good points, and I can see where you're coming from - see my below
post.

> If you really want multiple networks with multiple routes between
> the networks to work transparantly, you're probably going to have
> to run a proper routing protocol on the networks.

Would RIP2 suffice? I ran this on my Netgear, but i can't appear to
find it on my draytek. If RIP2 needs implementing then I can take this
up with Draytek. At least now I know what is preventing my setup from
working correctly!

I'll have to grab a debian wifi laptop from work on monday and see how
that works within my (W)LAN. Do you have any suggestions re the routing
protocol?

Thansk again,
Chris

In an earlier contribution to this discussion,
Chris <(E-Mail Removed)> wrote:

> Hi,
>
> I have a Draytek Vigor 2500VG, over a DSL connection. (bridged over a
> modem)
>
> Here's my problem:
>
> I have numerous PCs (GNU/Linux and Windows) all with file shares
> enabled. Now, from within my LAN I can browse all file-shares
> perfectly. The same cant be said from my wifi clients..
>
I have similar problems using a 3Com wireless router. I have a wirelessly
connected laptop which sometimes refuses to talk to wired PCs and vice
versa. When this happens, if I ping the wireless m/c from a wired one, and
vice versa, this usually gets them talking again.
--
Cheers,
Tim
______
Please reply to newsgroup. Reply address is invalid.

"Chris" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) ...
> Hi,
>
> I have a Draytek Vigor 2500VG, over a DSL connection. (bridged over a
> modem)
>
> Here's my problem:
>

I have a Vigor 2500 ADSL router (basic non-wireless model), to which I have
a Netgear ME-102 WAP connected. All PCs on the network have no problems
accessing shares on any other PCs. Using all Windows OS's, and all PCs get
their network info (IP's, gateways addresses etc) from the DHCP server on
the Vigor (the WAP passes all DHCP enquiries on for the router to handle).

Not an answer, but hope the info is useful to you.

--
</Slugsie>

In article <(E-Mail Removed)>, (E-Mail Removed) says...
> In an earlier contribution to this discussion,
> Chris <(E-Mail Removed)> wrote:
>
> > Hi,
> >
> > I have a Draytek Vigor 2500VG, over a DSL connection. (bridged over a
> > modem)
> >
> > Here's my problem:
> >
> > I have numerous PCs (GNU/Linux and Windows) all with file shares
> > enabled. Now, from within my LAN I can browse all file-shares
> > perfectly. The same cant be said from my wifi clients..
> >
> I have similar problems using a 3Com wireless router. I have a wirelessly
> connected laptop which sometimes refuses to talk to wired PCs and vice
> versa. When this happens, if I ping the wireless m/c from a wired one, and
> vice versa, this usually gets them talking again.
>
I have no problems communicating between WLAN > LAN. I can connect to
EVERY open port, BAR 445! It's something on the router, I swear. Why
would every port work fine from laptop (Wlan) to PC (eth lan) bar 445?
I know it sounds like a local firewall, but it isn't. Windows Firewall
is very much disabled, and there are no problems with file-sharing when
the laptop uses ethernet

In article <(E-Mail Removed)>, (E-Mail Removed) says...
> "Chris" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed) ...
> > Hi,
> >
> > I have a Draytek Vigor 2500VG, over a DSL connection. (bridged over a
> > modem)
> >
> > Here's my problem:
> >
>
> I have a Vigor 2500 ADSL router (basic non-wireless model), to which I have
> a Netgear ME-102 WAP connected. All PCs on the network have no problems
> accessing shares on any other PCs. Using all Windows OS's, and all PCs get
> their network info (IP's, gateways addresses etc) from the DHCP server on
> the Vigor (the WAP passes all DHCP enquiries on for the router to handle).
>
> Not an answer, but hope the info is useful to you.

Hi,

Our router's are basically the same aren't they? Bar mine is primarily
designed for a cable connection and yours for DSL, and without Wireless
(tho that is a cost option)? Either way, appreciate your confirming you
don't have any problems. I'm sure the firewall on the 2100VG is
stopping the packet getting through via WiFi, or is corrupting it in
some way so much that the request goes to /foo/bar

Chris wrote:

> I have no problems communicating between WLAN > LAN. I can connect to
> EVERY open port, BAR 445! It's something on the router, I swear. Why
> would every port work fine from laptop (Wlan) to PC (eth lan) bar 445?
> I know it sounds like a local firewall, but it isn't. Windows Firewall
> is very much disabled, and there are no problems with file-sharing when
> the laptop uses ethernet

Try having a sniff with Ethereal [on windows and linux] and see what's going
on.

alexd
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