Hi,
>
> 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?
Did you try to debug the adjacency process? What does "sh ip ospf neigh" show?
pk wrote in news:fonbrg$6ku$ snipped-for-privacy@aioe.org:
Here are the 2 running configs, 192.168.4.2 is the ip address of another ethernet port on GROUCHO which is 'DOWN' at the moment. I have been using it to get my Internet connection working through my Cisco kit by plugging my 3Com modem into it. OSPF just chose this IP address to use as the ID for GROUCHO.
GROUCHO#show run Building configuration...
Current configuration : 2362 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime service password-encryption ! hostname GROUCHO ! boot system tftp c2600-is-mz.121-27b.bin 192.168.1.50 boot system flash aaa new-model aaa authentication login default local aaa authorization exec default local enable secret 5 $1$FyMK$Zrr0VmdGOD3vNYR75Rjzf. enable password 7 121A0C041104 ! username Jason password 7 02000B5000031D7318 ip subnet-zero ! ! no ip domain-lookup ip host HARPO 192.168.3.2 ip host CHICO 192.168.2.1 ip host SWITCH 192.168.1.2 ip dhcp excluded-address 192.168.1.1 192.168.1.9 ip dhcp excluded-address 192.168.1.25 192.168.1.255 ip dhcp excluded-address 192.168.1.17 255.255.255.0 ip dhcp excluded-address 192.168.1.12 255.255.255.0 ip dhcp excluded-address 192.168.1.11 255.255.255.0 ! ip dhcp pool Jason network 192.168.1.0 255.255.255.0 default-router 192.168.1.100 dns-server 4.2.2.2 4.2.2.3 domain-name jason.co.uk lease 7 ! no ip bootp server ! key chain jason key 1 key-string 7 01100F175804 ! ! ! interface Ethernet0/0 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 full-duplex no cdp enable ! interface Serial0/0 bandwidth 100000 ip address 192.168.2.2 255.255.255.252 ip authentication mode eigrp 99 md5 ip authentication key-chain eigrp 99 jason ip ospf cost 300 no ip mroute-cache ! interface Ethernet0/1 description LINK TO INTERNET ip address 192.168.4.2 255.255.255.0 ip nat inside no ip mroute-cache full-duplex ! router eigrp 99 network 192.168.1.0 network 192.168.2.2 0.0.0.0 auto-summary ! router ospf 5 log-adjacency-changes network 192.168.1.100 0.0.0.0 area 0 network 192.168.2.2 0.0.0.0 area 0 network 192.168.7.1 0.0.0.0 area 0 ! router rip version 2 network 192.168.1.0 network 192.168.2.0 network 192.168.7.0 ! ip nat inside source list 102 interface Ethernet0/0 overload ip nat inside source static udp 192.168.1.17 32459 interface Ethernet0/0
32459 ip nat inside source static tcp 192.168.1.17 32459 interface Ethernet0/0
32459 ip classless no ip http server ! ! line con 0 exec-timeout 0 0 password 7 071C3543400C0B0A041718 logging synchronous line aux 0 line vty 0 4 access-class 1 in password 7 050D09042A495C5B4D ! end
CHICO#show run Building configuration...
Current configuration: ! version 12.0 service timestamps debug uptime service timestamps log uptime service password-encryption ! hostname CHICO ! enable secret 5 $1$7F47$eFaUV7zrDHoKuM7oQFV0F/ ! username EAGLE1 password 7 1316031D0509162538213B username Jason password 7 0115090F500E145D75 ip subnet-zero no ip domain-lookup ip host GROUCHO 192.168.2.2 ip host HARPO 192.168.3.2 255.255.255.0 isdn switch-type basic-ni ! key chain jason key 1 key-string 7 070C285F4D06 clock timezone BST 0 ! ! ! interface Serial0 description LINK TO GROUCHO bandwidth 1000000 ip address 192.168.2.1 255.255.255.252 ip access-group jason2 in ip access-group jason out no ip directed-broadcast ip authentication mode eigrp 99 md5 ip authentication key-chain eigrp 99 jason clockrate 64000 ! interface Serial1 description LINK TO HARPO ip address 192.168.3.1 255.255.255.252 no ip directed-broadcast ip authentication mode eigrp 99 md5 ip authentication key-chain eigrp 99 jason clockrate 64000 ! interface TokenRing0 no ip address no ip directed-broadcast shutdown ! interface BRI0 no ip address no ip directed-broadcast encapsulation ppp shutdown isdn switch-type basic-ni ! router eigrp 99 network 192.168.2.0 network 192.168.3.0 ! router ospf 5 network 192.168.2.1 0.0.0.0 area 0 network 192.168.3.1 0.0.0.0 area 0 ! router rip version 2 network 192.168.2.0 network 192.168.3.0 ! ip classless ip route 192.168.5.0 255.255.255.0 192.168.2.2 ! banner motd ^CThe old Eagle2^C ! line con 0 exec-timeout 0 0 password 7 04481F0901245E411A1C16 logging synchronous login local transport input none line aux 0 line vty 0 4 exec-timeout 0 0 password 7 120D001B1C0E18 login ! end
pk wrote in news:fone5n$efu$ snipped-for-privacy@aioe.org:
Thanks for the advice, I'll try your suggestions. The configs are a bit messy for two reasons:
1) I didn't erase the configs from the previos user
2) I've been experimenting with many different settings & trying different configs to try to understand all the concepts
I've nearly finished both ICND1 & ICND2 books so most likely I'll erase everything and start again when I've finished the second book & covered all the topics.
First thing I'd do, is to remove eigrp and rip. I can't imagine why you would want or need to run more than one routing protocol on the same links. It's considered bad practice. Also remove all eigrp-related stuff, like authentication, from interface configuration. EIGRP has a lower administrative distance than OSPF, and most likely adversely interferes with it.
Second, remove access-groups (in and out) from CHICO's serial0, since they are not defined anywhere.
Third, you have asymmetric bandwidth/cost configurations for GROUCHO's s0/0 and CHICO's s0. On GROUCHO, you declare an OSPF cost of 300, while on CHICO the cost is left at its default value (which is 10^8/bandwidth, or
10^8/10^6, or 100). Having different costs for a link at the opposite sides is not recommended, since it can cause asymmetric routing. Either manually adjust the costs, or the bandwidths, or remove both altogether and go with the default values.
After all the above, reload the routers and see whether things get better.
pk wrote in news:fone5n$efu$ snipped-for-privacy@aioe.org:
It looks like removing RIP & EIGRP solved the problem, I've learned something as I thought even if the administrative cost for a route was lower it would at least be displayed in a 'show ip route' command so long as it was UP & there were no other authentication / config problems. Thanks for taking the time to look into the problem for me.
No, when the same route (destination/mask) is learned by multiple sources (routing protocols), only the one with the lowest AD is entered into the routing table.
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