EIGRP not Peering

flipmad

I apologize I have been trying to delete the previous thread. But I am still having problems with EIGRP neigbors

ROUTER 1

interface FastEthernet0/0
description Connected to LAN
ip address 10.13.169.19 255.255.255.0 secondary
ip address 10.12.169.19 255.255.255.0

router eigrp 1
network 10.12.169.0 0.0.0.255
network 10.13.169.0 0.0.0.255
network 10.112.220.4 0.0.0.3
no auto-summary
neighbor 10.12.169.20 FastEthernet0/0

ROUTER 2

interface FastEthernet0/0
description LAN Connection
ip address 10.13.169.20 255.255.255.0 secondary
ip address 10.12.169.20 255.255.255.0

router eigrp 1
network 10.12.169.0 0.0.0.255
network 10.13.169.0 0.0.0.255
network 172.16.0.0
no auto-summary
no eigrp log-neighbor-changes


ROUTER 1

5#sh ip eigrp neigh
IP-EIGRP neighbors for process 1
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 10.112.220.6 Tu1 14 3d18h 73 5000 0 83651


I have a tunnel built which is neighboring. But ROUTER 1 and ROUTER 2 will not neighbor up

Forsaken_GA

What do your debugs show?

flipmad

I will perform some debugs and post them

hexem

R2 does not have a static neighbor set back to R1.

this on R2:

neighbor 10.12.169.19 FastEthernet0/0

EIGRP: When you configure a static neighbor, EIGRP stops sending multicasts on the network, replacing them with the unicast. If you configure passive-interface, it blocks the unicast as well. Moreover, you cannot mix static and multicast between two neighbors; that is, you cannot configure a static neighbor on one side and the neighbor still sending multicast. They just don’t form the adjacency.

flipmad

Hmm, i have enabled term mon, but when I try to debug the EIGRP packets it does not show anything

#debug eigrp packets
EIGRP Packets debugging is on
(UPDATE, REQUEST, QUERY, REPLY, HELLO, IPXSAP, PROBE, ACK, STUB, SIAQUERY, SIAREPLY)



sh ip eigrp interfaces detail
IP-EIGRP interfaces for process 1
Xmit Queue Mean Pacing Time Multicast Pending
Interface Peers Un/Reliable SRTT Un/Reliable Flow Timer Routes
Fa0/0 0 0/0 0 0/1 0 0
Hello interval is 5 sec
Next xmit serial <none>
Un/reliable mcasts: 0/0 Un/reliable ucasts: 0/0
Mcast exceptions: 0 CR packets: 0 ACKs suppressed: 0
Retransmissions sent: 0 Out-of-sequence rcvd: 0
Authentication mode is not set
Use unicast



I noticed on this interface I am showing

32953 unknown protocol drops

hexem

see my post above

flipmad

hexem wrote: »

R2 does not have a static neighbor set back to R1.

this on R2:

neighbor 10.12.169.19 FastEthernet0/0

EIGRP: When you configure a static neighbor, EIGRP stops sending multicasts on the network, replacing them with the unicast. If you configure passive-interface, it blocks the unicast as well. Moreover, you cannot mix static and multicast between two neighbors; that is, you cannot configure a static neighbor on one side and the neighbor still sending multicast. They just don’t form the adjacency.

I just removed my static neighbor off Router 1 but still no neighbors from the interface


router eigrp 1
network 10.12.169.0 0.0.0.255
network 10.13.169.0 0.0.0.255
network 10.112.220.4 0.0.0.3
no auto-summary


sh ip eigrp neigh
IP-EIGRP neighbors for process 1
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 10.112.220.6 Tu1 12 3d20h 73 5000 0 83651

mikej412

Is this a lab issue or a production issue?

Is this real hardware or a simulator/emulator?

What's the routers and IOS versions?

Are the interfaces up and up?

If they are plugged into a switch, are the switch ports in the same VLAN?

Can the two routers ping each other?

flipmad

mikej412 wrote: »

Is this a lab issue or a production issue?

Is this real hardware or a simulator/emulator?

What's the routers and IOS versions?

Are the interfaces up and up?

If they are plugged into a switch, are the switch ports in the same VLAN?

Can the two routers ping each other?

Mike these are production routers. I will post my results shortly (gotta finish up a conference call). Thanks for your help

mikej412

blake15 wrote: »

I have a tunnel built which is neighboring. But ROUTER 1 and ROUTER 2 will not neighbor up

What tunnel?

billscott92787

Have you tried defining the neighbor statement on both routers to allow unicasts between the two? Have you got any debugs yet?

flipmad

Is this a lab issue or a production issue? PRODUCTION

Is this real hardware or a simulator/emulator? REAL 2611XM

What's the routers and IOS versions? Advanced IP (The latest 12.4)

Are the interfaces up and up? YES

If they are plugged into a switch, are the switch ports in the same VLAN? No switches, there are directly connected

Can the two routers ping each other? YES .19 can ping .20



In regards to a tunnel. I have a VPN built back to another router (R3) which is UP and I see EIGRP neighbors to this router.


interface Loopback1
description VPN Loopback IP
ip address 10.112.221.2 255.255.255.255
!
interface Tunnel1
ip address 10.112.220.5 255.255.255.252
ip ospf mtu-ignore
tunnel source 10.112.221.2
tunnel destination 10.112.221.1
!
interface FastEthernet0/0
description Connected to LAN
ip address 10.13.169.19 255.255.255.0 secondary
ip address 10.12.169.19 255.255.255.0
speed 100
full-duplex
!
interface FastEthernet0/1
description Connected to Internet
ip address x.x.x.x x.x.x.x
duplex auto
speed auto
crypto map xxxxx
crypto ipsec df-bit clear
crypto ipsec fragmentation before-encryption
!
router eigrp 1
network 10.12.169.0 0.0.0.255
network 10.13.169.0 0.0.0.255
network 10.112.220.4 0.0.0.3
no auto-summary


I have the exact same setup at another location which is working perfectly (different IP). I just reboot the router and I am still not getting any DEBUG output on this router? (.19)

Just FYI, I do not have access to router .20 to perform debug commands. I do have a sh run from that router.

I have not tried creating static neighbors on both ends.

What is really perplexing me is why the DEBUG output will not work.

Met44

blake15 wrote: »

What is really perplexing me is why the DEBUG output will not work.

If you are connected via telnet/ssh, check that you have terminal monitor enabled.

flipmad

Met44 wrote: »

If you are connected via telnet/ssh, check that you have terminal monitor enabled.

I am telnetted in and term mon it turned on. im satrting to think its a faulty router

hexem

Can you get a 'show ip protocols' for both router's

chrisone

It is not clear how your environment is. I don't fully understand why you need a neighbor statement on an Ethernet broadcast LAN to another neighbor in the same Ethernet broadcast LAN, the multicasts should reach each router fine.

However now you say the two routers are in different locations. Are you trying to form an eigrp neighbor relationship via the internet with GRE tunnels? because your config is all wrong if thats the case.

aldous

isn't eigrp funny with secondary addresses?