04-03-2009 01:06 AM - edited 03-04-2019 04:13 AM
Hi,
Situation:
4 routers. 2 c1751-V and 2 c805.
Star topology.
One of the two c1751 is the central router with 3 serial interfaces:
PlC - s0/0:0 - 2Mbps - s0/0:0 Pl1
PlC - S1/0 - 64kbps - s0 Pl2
PlC - s1/1 - 64kbps - s0 Pl3.
IP-s:
PlC fa0/0: 192.168.1.0/24
PlC s0/0:0: 192.168.98.113/30
PlC s1/0: 192.168.98.117/30
PlC s1/1: 192.168.98.121/30
Pl1 fa0/0: 10.2.20.0/24
Pl1 s0/0:0 192.168.98.114/30
Pl2 eth0: 10.2.30.0/24
Pl2 s0: 192.168.98.118/30
Pl3 eth0: 10.2.40.0/24
Pl3 s0: 192.168.98.122/30.
I'd like a very simple config. I want to see every network each router.
My problem is: the branch routers can't see the 10 network!
Exctract from the routing table of PlC:
192.168.98.0/30 is subnetted, 3 subnets
C 192.168.98.120 is directly connected, Serial1/1
C 192.168.98.112 is directly connected, Serial0/0:0
C 192.168.98.116 is directly connected, Serial1/0
R 10.0.0.0/8 [120/1] via 192.168.98.122, 00:00:26, Serial1/1
[120/1] via 192.168.98.118, 00:00:09, Serial1/0
[120/1] via 192.168.98.114, 00:00:18, Serial0/0:0
C 192.168.1.0/24 is directly connected, FastEthernet0/0
And here is the Pl1 routing table:
192.168.98.0/30 is subnetted, 3 subnets
R 192.168.98.120 [120/1] via 192.168.98.113, 00:00:00, Serial0/0:0
C 192.168.98.112 is directly connected, Serial0/0:0
R 192.168.98.116 [120/1] via 192.168.98.113, 00:00:00, Serial0/0:0
10.0.0.0/24 is subnetted, 1 subnets
C 10.2.20.0 is directly connected, FastEthernet0/0
R 192.168.1.0/24 [120/1] via 192.168.98.113, 00:00:00, Serial0/0:0
RIP config on PlC:
router rip
version 2
passive-interface FastEthernet0/0
network 192.168.1.0
network 192.168.98.0
no auto-summary
RIP config on Pl1:
router rip
version 2
redistribute connected
network 10.0.0.0
network 192.168.98.0
What can I do wrong?
I tried out many config without success.
TIA,
Solved! Go to Solution.
04-03-2009 01:18 AM
04-03-2009 01:18 AM
On your branch routers
router rip
no auto-summary
Jon
04-03-2009 01:25 AM
Hi,
Just those two lines or no auto-summary was missing from my config?
TIA,
04-03-2009 01:44 AM
Sorry for the confusion. Just add "no auto-summary" to the existing rip configuration.
Jon
04-03-2009 02:04 AM
Hi,
Never mind!
Thanks for your help!
I made a new config with and without my previous commands and now it is working. :-)
I removed redistribute connected lines, too.
Best regards,
04-03-2009 02:19 AM
Hi,
My next problem related to the previous hw configuration but the WAN part was absolutelly different and I don't understand what was the problem.
Topology is the same.
Addresses of the WAN interfaces were:
PlC s0/0:0: 10.1.1.1/24
PlC s1/0: 10.1.1.2/24
PlC s1/1: 10.1.1.3/24
Pl1 s0/0:0 10.1.1.4/24
Pl2 s0: 10.1.1.5/24
Pl3 s0: 10.1.1.6/24.
PlC and Pl1 don't ping each other. Pl2,3 could ping PlC.
RIP was switched of. The config full of static routes.
I hate this config and I changed to the mentioned config which is working perfectly. I'd like to know what is the problem at this "shared" WAN IP addresses.
TIA,
04-03-2009 02:22 AM
Are you using frame-relay on the WAN ?
04-03-2009 02:30 AM
Where the ping doesn't work is a G.704 mode over SDH P-P connection with VWIC2-1MFT T1/E1 card.
PlC-Pl2;3 is going to an NTU which are connected to the same SDH with WIC-2T.
On the routers there aren't any FR related config.
TIA,
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