[OT] Small NAT device ?

Hi,

Does anyone have any idea if there is a product on the market designed
specifically to do NAT ?

Ideally, it would be a very small device, and could be added to an existing
network segment.....or added inline to a wireless bridge (w/o NAT) to
provide NAT?

Thanks in advance,

DanS

DanS <(E-Mail Removed)> wrote in
news:Xns986C9017DFC89thisnthatadelphianet@216.196. 97.142:

> Hi,
>
> Does anyone have any idea if there is a product on the market designed
> specifically to do NAT ?
>
> Ideally, it would be a very small device, and could be added to an
> existing network segment.....or added inline to a wireless bridge (w/o
> NAT) to provide NAT?
>
> Thanks in advance,
>
> DanS
>

Additional note, since it sounds like I could just be talking about a plain
router.

Hoping to find something very small that could be put in-line on a CAT5
run. I'm envisioning a small box, with an RJ on each end and a power
connector, not much larger than an inline RJ coupler.

On Mon, 30 Oct 2006 13:48:31 -0600, DanS
<(E-Mail Removed)> wrote in
<Xns986C96D976508thisnthatadelphianet@216.196.97.1 42>:

>DanS <(E-Mail Removed)> wrote in
>news:Xns986C9017DFC89thisnthatadelphianet@216.196 .97.142:
>
>> Does anyone have any idea if there is a product on the market designed
>> specifically to do NAT ?
>>
>> Ideally, it would be a very small device, and could be added to an
>> existing network segment.....or added inline to a wireless bridge (w/o
>> NAT) to provide NAT?

>Additional note, since it sounds like I could just be talking about a plain
>router.

It does.

>Hoping to find something very small that could be put in-line on a CAT5
>run. I'm envisioning a small box, with an RJ on each end and a power
>connector, not much larger than an inline RJ coupler.

Sounds to me like a small wired router. Is size such a big issue?

--
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John Navas <(E-Mail Removed)> wrote in
news:(E-Mail Removed):

> On Mon, 30 Oct 2006 13:48:31 -0600, DanS
> <(E-Mail Removed)> wrote in
> <Xns986C96D976508thisnthatadelphianet@216.196.97.1 42>:
>
>>DanS <(E-Mail Removed)> wrote in
>>news:Xns986C9017DFC89thisnthatadelphianet@216.19 6.97.142:
>>
>>> Does anyone have any idea if there is a product on the market
>>> designed specifically to do NAT ?
>>>
>>> Ideally, it would be a very small device, and could be added to an
>>> existing network segment.....or added inline to a wireless bridge
>>> (w/o NAT) to provide NAT?
>
>>Additional note, since it sounds like I could just be talking about a
>>plain router.
>
> It does.
>
>>Hoping to find something very small that could be put in-line on a
>>CAT5 run. I'm envisioning a small box, with an RJ on each end and a
>>power connector, not much larger than an inline RJ coupler.
>
> Sounds to me like a small wired router. Is size such a big issue?
>

Yes, it has to be small. It is to be packaged in with an EVDO modem and a
24v-to-12v converter.


DanS

John Navas <(E-Mail Removed)> wrote in
news:(E-Mail Removed):


>
>>Hoping to find something very small that could be put in-line on a
>>CAT5 run. I'm envisioning a small box, with an RJ on each end and a
>>power connector, not much larger than an inline RJ coupler.
>
> Sounds to me like a small wired router. Is size such a big issue?
>

Here, something like this, http://www.pulsewan.com/wan/tiny_router.htm but
eth-to-eth with NAT.

DanS

DanS wrote:
> Hi,
>
> Does anyone have any idea if there is a product on the market designed
> specifically to do NAT ?
>
> Ideally, it would be a very small device, and could be added to an existing
> network segment.....or added inline to a wireless bridge (w/o NAT) to
> provide NAT?
>
> Thanks in advance,
>
> DanS

Gumsitx have a daughterboard with 2 Fast ethernet ports that could be
used to produce such a device.

www.gumstix.org

You could ask the gumstix guys if they know of any products being
developed

(E-Mail Removed) wrote in
news:(E-Mail Removed) oups.com:

> DanS wrote:
>> Hi,
>>
>> Does anyone have any idea if there is a product on the market
>> designed specifically to do NAT ?
>>
>> Ideally, it would be a very small device, and could be added to an
>> existing network segment.....or added inline to a wireless bridge
>> (w/o NAT) to provide NAT?
>>
>> Thanks in advance,
>>
>> DanS
>
> Gumsitx have a daughterboard with 2 Fast ethernet ports that could be
> used to produce such a device.
>
> www.gumstix.org
>
> You could ask the gumstix guys if they know of any products being
> developed
>
>

Thank you. I just penned of an e-mail to them.

Regards,

DanS

DanS <(E-Mail Removed)> hath wroth:

>Yes, it has to be small. It is to be packaged in with an EVDO modem and a
>24v-to-12v converter.
>DanS

24VDC? Is this going on a big tractor or diesel generator?

An EVDO modem would require a serial or USB port to ethernet router.
You might wanna look at:

http://www.lantronix.com/device-netw...ers/xport.html

http://www.lantronix.com/device-netw.../xport-ar.html
and see if they fit your application. The list of supported protocols
on the Xport-AR is extensive, but doesn't appear to include NAT.
However, there are 3rd party developers that sell the missing
protocols including NAT:
http://www.nationaldatamux.com/lantr...addon.html#nat

Also, if you wanna make prototyping easy, you'll need one of these:
http://cgi.ebay.com/ws/eBayISAPI.dll...m=160027179973

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

Jeff Liebermann <(E-Mail Removed)> wrote in
news:(E-Mail Removed):

> DanS <(E-Mail Removed)> hath wroth:
>
>>Yes, it has to be small. It is to be packaged in with an EVDO modem
>>and a 24v-to-12v converter.
>>DanS
>
> 24VDC? Is this going on a big tractor or diesel generator?

I can't really say.

>
> An EVDO modem would require a serial or USB port to ethernet router.
> You might wanna look at:

Nope. I've used the X-Port in designs before. The EVDO device desired by
the customer is made by Airlink, and has ethernet on it. The ethernet
side can be configured like a bridge, and pass the internet IP onto what
ever device is connected to it. Or, you can specify a private 192.168.x.x
IP for it to DHCP to the connecting device and the Airlink box will do (a
lame implementation of) NAT, to that IP. One-to-one NAT only, just to
that one single IP it DCHP's out. So it could hand out that one IP to a
router device, and the router device NATting the wireless clients to that
IP.

Originally we were looking at using the Senao/Engenius outdoor AP (NOT my
idea), but as it turns out, those do not do NAT when in AP mode (?). I
know, they are sold as bridges, but ........

I have been unable to find a similar small AP Router w/NAT and POE...any
ideas ?

>
> http://www.lantronix.com/device-netw...e-servers/xpor
> t.html
>
> http://www.lantronix.com/device-netw...e-servers/xpor
> t-ar.html and see if they fit your application. The list of supported
> protocols on the Xport-AR is extensive, but doesn't appear to include
> NAT. However, there are 3rd party developers that sell the missing
> protocols including NAT:

http://www.nationaldatamux.com/lantr...addon.html#nat

This is VERY interesting...and HOLY SH*T...6.1 miles from my companies
head engineer's location in AZ. Not that I think we would even think of
using the X-Port here, but he just eats this stuff right up.

Here's an interesting device. I ran across this device from RAD in my
current quest. It's called tiny router, and is essentially a full router
in a slightly oversize DB25 shell. One side is ethernet and the other is
your choice of V.24, V.35, V.36, RS-530, X.21; internal fiber optic or 4-
wire modems....which is why it's a no-go for my application.

http://www.pulsewan.com/wan/tiny_router.htm

>
> Also, if you wanna make prototyping easy, you'll need one of these:
> http://cgi.ebay.com/ws/eBayISAPI.dll...m=160027179973
>

X-Port not included. We've got a bunch of the X-Ports and proto boards
already.

Thanks for taking the time to respond.

Regards,

DanS

DanS <(E-Mail Removed)> hath wroth:

>I can't really say.

Ok, it's probably military. Don't worry. Nobody reads usenet news
any more so you're secret is safe.

>The EVDO device desired by
>the customer is made by Airlink, and has ethernet on it.

This one?
http://www.airlink.com/products/pinpoint-e-evdo.asp

Perhaps you're using the wrong Airlink model? See:
http://www.airlink.com/products/raven-e-evdo.asp
"For more advanced network requirements, the Raven-E also provides
an option for either public or private IP (NAT), GRE/IP-SEC
pass-through, and SNMP management."

>The ethernet
>side can be configured like a bridge, and pass the internet IP onto what
>ever device is connected to it. Or, you can specify a private 192.168.x.x
>IP for it to DHCP to the connecting device and the Airlink box will do (a
>lame implementation of) NAT, to that IP. One-to-one NAT only, just to
>that one single IP it DCHP's out. So it could hand out that one IP to a
>router device, and the router device NATting the wireless clients to that
>IP.

I was reading the (Verizon EVDO) manual at:

http://www.airlink.com/docs/Raven-E/..._UserGuide.pdf
and found a similar description of NAT operation on Pg64 if the
"private IP mode" is selected. However, it seems that it only does
1:1 NAT in this mode. In the "public network IP mode", it apparently
will do normal NAT with DHCP IP address delivery from the internal
DHCP server. See Pg24.

>Originally we were looking at using the Senao/Engenius outdoor AP (NOT my
>idea), but as it turns out, those do not do NAT when in AP mode (?). I
>know, they are sold as bridges, but ........

Yech? All bridges should pass broadcasts, which are necessary to pass
DHCP requests. Something is wrong (somewhere). Have you tried
sniffing the ethernet port on the Senao to see if broadcasts are
passed?

>I have been unable to find a similar small AP Router w/NAT and POE...any
>ideas ?

Yeah. One of those "travel routers" sold by the commodity vendors. I
don't think they'll do PoE, but probably can be powered by a small
DC-DC switcher. One of the 78xx switcher plug compatible replacements
should work.

<http://www.asus.com/products4.aspx?l1=12&l2=43&l3=0&model=409&modelmen u=1>
Alternative firmware is available if you feel like hacking.
<http://www.bitsum.com/openwiking/owbase/ow.asp?WL%2D530G>

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558