On Thu, 28 Jul 2005, Kirti S. Bajwa wrote:
The IP pool is something we tried as a stop gap operation. It did not fix the problem. We are changing it back to:
ARC1(Port 15) 12.21.237.241 IP Pool: 12.21.237.48/C ARC2(Port 16) 12.21.237.242 IP Pool: 12.21.237.96/C
That's going to give you overlapping pools, which will cause big problems. If there was more info about your network (is it subnetted, are you doing this all off of one /24, etc.??) it would be much easier to troubleshoot. Unless you were using it before, turn RIP off, that's just adding more complication to an already hazy problem.
I have no access to the routing table on CISCO. However, here is the routing table from our 3COM.
"sh ip route" should do it, you don't need enable privs for that. If indeed you're using one /24 for everything and have a totally "flat" network, you're going to have to make sure the ARC is proxy-arping for your dialup users since they are getting assigned out of your main LAN block. We just dumped the last of our dialup gear, so I can't poke around, but here's two things someone can probably clarify for you: -how to explicitly set a range of dynamic IPs. You MUST make sure you have nothing else on the LAN using those IPs. You MUST make sure that you are not using IPs from the same range on both ARCs. If you fail to do that, you will have a problem much like what you described. -how to ensure that the arc will proxy-arp for the dialup connections. Do those two things, then see how your problem goes. Again, do a traceroute from outside if you see it happen again AFTER making sure you've got the above two issues sorted out. Thanks, Charles
HiPer>> list rtab preFERRED
ROUTING TABLE PREFERRED ROUTES Destination Prot Age NextHop Metric Interface 0.0.0.0/0 REMOTE 13265 12.21.237.1 1 eth:1 12.0.0.0/H LOCAL 13265 12.0.0.0 0 eth:1 12.21.237.0/C LOCAL 13265 12.21.237.0 0 eth:1 12.21.237.0/H LOCAL 13265 12.21.237.0 0 eth:1 12.21.237.98/H LOCAL 440 12.21.237.98 0 slot:4/mod:11 12.21.237.99/H LOCAL 428 12.21.237.99 0 slot:4/mod:6 12.21.237.100/H LOCAL 1063 12.21.237.100 0 slot:4/mod:12 12.21.237.103/H LOCAL 975 12.21.237.103 0 slot:4/mod:13 12.21.237.104/H LOCAL 2665 12.21.237.104 0 slot:4/mod:15 12.21.237.105/H LOCAL 5385 12.21.237.105 0 slot:4/mod:8 12.21.237.112/H LOCAL 19 12.21.237.112 0 slot:4/mod:4 12.21.237.114/H LOCAL 42 12.21.237.114 0 slot:4/mod:3 12.21.237.115/H LOCAL 210 12.21.237.115 0 slot:4/mod:17 12.21.237.242/H LOCAL 13265 12.21.237.242 0 eth:1 12.21.237.255/H LOCAL 13265 12.21.237.255 0 eth:1 12.255.255.255/H LOCAL 13265 12.255.255.255 0 eth:1 HiPer>>
No static route!!!! Routing Protocol??? Please be more precise. I am not an expert of 3COM.
NOTE: When I was talking to AT&T, they said that they are noticing a large number of lost data/packet (or something in similar terms) lost on the CISCO Router.
If any of this make sense, please respond/Help.
Kirti
NMC (Port 17) 12.21.237.240 ARC1(Port 15) 12.21.237.241 IP Pool: 12.21.237.48/31 ARC2(Port 16) 12.21.237.242 IP Pool: 12.21.237.96/31
I didn't understand this IP pool setup. You made a typo when you wrote /31 on the IP pools, yes? Or perhaps you meant a 31 address count (/27)?
This sounds like a routing problem. Please post the routing tables (both from the Cisco and the TC). Are you using static routes or a routing protocol, btw?
-- -o) Vegard Svanberg, CTO - XOIP Comm. (www.xoip.no) /\\ Violgata 3A, N-1776 HALDEN, NORWAY _\_v Phone: (+47) 69701802 | Fax: (+47) 69701801
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