From: Bob Sinclair (bob@bobsinclair.net)
Date: Sun Nov 02 2008 - 18:02:48 ARST
Piotr,
Check that the MTUs match on both devices. I notice one is a switch.
Though the specs do not require equal MTU (like OSPF does) Cisco
routers have been known to drop EIGRP packets over MTU mismatch issues.
The K-value mismatch error can be caused when the near side router does
not support the "goodbye" message, added around 12.2(3), but the far
side does.
HTH,
Bob Sinclair CCIE 10427 CCSI 30427
www.netmasterclass.net
Piotr wrote:
> Switch:
>
> 05:04:04: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> 183.1.105.5(FastEthernet0/18) is up: new adjacency
> --More--
> 05:05:23: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> 183.1.105.5(FastEthernet0/18) is down: K-value mismatch
> --More--
> 05:05:26: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> 183.1.105.5(FastEthernet0/18) is up: new adjacency
>
> router eigrp 100
> network 183.1.105.10 0.0.0.0
> network 183.1.107.10 0.0.0.0
> no auto-summary
> eigrp router-id 150.1.10.10
>
> interface FastEthernet0/18
> no switchport
> ip address 183.1.105.10 255.255.255.0
>
>
> Routing Protocol is "eigrp 100"
> Outgoing update filter list for all interfaces is not set
> Incoming update filter list for all interfaces is not set
> Default networks flagged in outgoing updates
> Default networks accepted from incoming updates
> EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
> EIGRP maximum hopcount 100
> EIGRP maximum metric variance 1
> Redistributing: eigrp 100
> EIGRP NSF-aware route hold timer is 240s
> Automatic network summarization is not in effect
> Maximum path: 4
> Routing for Networks:
> 183.1.105.10/32
> 183.1.107.10/32
> Routing Information Sources:
> Gateway Distance Last Update
> 183.1.107.7 90 00:07:43
> Distance: internal 90 external 170
>
>
>
>
> router:
> *Nov 2 13:55:54.926: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> 183.1.105.10 (FastEthernet0/0) is down: retry limit exceeded
> RSRack1R5(config-router)#
> *Nov 2 13:55:57.322: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> 183.1.105.10 (FastEthernet0/0) is up: new adjacency
> RSRack1R5(config-router)#
> *Nov 2 13:57:16.834: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> 183.1.105.10 (FastEthernet0/0) is down: retry limit exceeded
> RSRack1R5(config-router)#
> *Nov 2 13:57:20.290: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
> 183.1.105.10 (FastEthernet0/0) is up: new adjacency
>
>
> router eigrp 100
> network 183.1.105.5 0.0.0.0
> no auto-summary
> eigrp router-id 150.1.5.5
>
>
> interface FastEthernet0/0
> ip address 183.1.105.5 255.255.255.0
> duplex auto
> speed auto
>
>
> Routing Protocol is "eigrp 100"
> Outgoing update filter list for all interfaces is not set
> Incoming update filter list for all interfaces is not set
> Default networks flagged in outgoing updates
> Default networks accepted from incoming updates
> EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
> EIGRP maximum hopcount 100
> EIGRP maximum metric variance 1
> Redistributing: eigrp 100
> EIGRP NSF-aware route hold timer is 240s
> Automatic network summarization is not in effect
> Maximum path: 4
> Routing for Networks:
> 183.1.105.5/32
> Routing Information Sources:
> Gateway Distance Last Update
> 183.1.105.10 90 00:09:49
> Distance: internal 90 external 170
>
>
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