Equipment Support > Hardware By Brand > Netopia/Cayman > [netopia] netopia 3347 with other router

reply to steev

Re: [netopia] netopia 3347 with other router

Thanks but I've already tried what's described in the suggested FAQ. I've tried it with 2 different 2nd routers.
(I should add that I'm not an average end-user, I've been messing with networks for about 13 years now, not exactly professionally but in home and small business environments, dealing with everything from T1 circuits to ISDN lines to ADSL. I've almost never had as much trouble as with this situation.)

One weird thing I observed with my latest attempts is that once I got the 2nd router on the same subnet, connected to the 1st router via LAN ports, I could actually ping the 1st router from behind the 2nd, only with something like 80% packet loss. In fact I could ping out to the internet but also with 80 to 90 percent packet loss, and no http. And I can't ping the 2nd router from the Netopia (the Netopia has a little ping utility on it)

here's another possible clue: in the Netopia log there are entries like this:

00:00:15:20 LHD: Interface Eth 100BT, State offline
00:00:15:20 LHD: IP 192.168.0.2, MAC 00-0c-41-4f-f0-fe
00:00:15:19 LHD: Interface Eth 100BT, State suspect
00:00:15:19 LHD: IP 192.168.0.6, MAC 00-23-32-2f-52-f9
00:00:15:19 LHD: Interface Eth 100BT, State suspect
00:00:15:19 LHD: IP 192.168.0.2, MAC 00-0c-41-4f-f0-fe
00:00:11:45 LHD: Interface Eth 100BT, State online
00:00:11:45 LHD: IP 192.168.0.77, MAC 00-23-32-2f-52-f8

.77 is a host connected directly to the Netopia.
.2 is the 2nd router (connected via a LAN port).
.6 was the machine i was pinging from (connected to a port of the 2nd router).

What's the 'state suspect' business? Could the Netopia somehow be not "trusting" the connection from the 2nd router, for some reason? Or...?

It seems like this has to be some problem with the Netopia, because the same thing happens with 2 different 2nd routers a linksys and a netgear, and the linksys worked fine when i was using it behind a motorola cable modem.

I would be sorely tempted to connect the two routers in the same room with a short, professionally made cable to try to eliminate cabling at this point. Do you get 80% packet loss with a new cable?
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I tried to remain child-like, all I achieved was childish.

i agree. it is conencting at 100mb, and if the cable is not pinned out properly you get all sorts of errors. i have some 10mb conenctions running on freaking ribbon cable and working great, but split a pair on a 100mb connection it goes to crap.
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Lack of Preparation on YOUR Part does NOT Constitute an Emergency on Mine!

reply to jimbopalmer
well i think i would eliminate the cable as a problem since when i have a computer connected directly to the netopia with the same cable i get 0% loss.

but is teh PC conencting at 100mb FULL duplex? if not the cable could still be the problem.

one last thign it can be tha thas happened to me before is that BOTH devices support auto polarity sense. this messes with each other and they both keep flipping TX and RX pairs. if one has the optioin to turn this off, do it.
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Lack of Preparation on YOUR Part does NOT Constitute an Emergency on Mine!

my apologies, y'all were right. it's the cable.
i went ahead and tested with a short store-bought cable and i got perfect throughput.
damn. all that for some badly terminated cable!

many thanks for all your help!!

don't feel bad, i hav efought that battle myself. i now have a good ethernet tester that checks for split/reversed pairs as well as just continuity and use it anytime i have an issue.
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Lack of Preparation on YOUR Part does NOT Constitute an Emergency on Mine!