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February 10, 2008, 1:51 pm
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I have a 10 Meg ethernet port on 'router 1' configured with IP address
192.168.1.100, it also has a secondary IP address of 192.168.7.1
configured. I have declared both IP addresses with the 'wildcard' mask
0.0.0.0 in the OSPF network configuration (along with a serial interface
192.168.2.2 on that router). However, on my other 2 routrers I'm seeing the
route to 192.168.7.1 but NOT to the 192.168.1.100 'primary' address?
I only added the 192.168.7.1 address to the OSPF network config in order to
troubleshoot the problem, prior to adding that I was not seeing the
192.168.1.100 route either, removing the secondary IP address does not
resolve the problem either.
I've checked MTU size, passive-interfaces & removed all authentication in
order to solve the problem, but to no avail. I've included various screen
dumps in order to help, can anyone point me in the right direction?
From router 2, showing the 192.168.7.0 route but not 192.168.1.0
CHICO#show ip route ospf
O 192.168.7.0/24 [110/11] via 192.168.2.2, 00:05:35, Serial0
From router 1, various show commands
GROUCHO#show ip ospf interface e0/0
Ethernet0/0 is up, line protocol is up
Internet Address 192.168.1.100/24, Area 0
Process ID 5, Router ID 192.168.4.2, Network Type BROADCAST, Cost: 10
Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 192.168.4.2, Interface address 192.168.1.100
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:05
Index 1/1, flood queue length 0
Last flood scan length is 0, maximum is 0
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 0, Adjacent neighbor count is 0
Suppress hello for 0 neighbor(s)
Excerpts from running-config
description LINK TO LAN
ip address 192.168.7.1 255.255.255.0 secondary
ip address 192.168.1.100 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
no ip mroute-cache
no cdp enable
GROUCHO#show ip ospf database
OSPF Router with ID (192.168.4.2) (Process ID 5)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
192.168.3.1 192.168.3.1 1674 0x80000004 0x00FD1F 4
192.168.3.2 192.168.3.2 1670 0x80000002 0x00BFC1 2
192.168.4.2 192.168.4.2 272 0x80000006 0x002470 4
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