From: Radoslav Vasilev (deckland@gmail.com)
Date: Wed Aug 09 2006 - 08:43:57 ART
The mac-address should be 0100.5e00.000a.
Anyway, any ideas why even with `no ip igmp snooping vlan xxx`` the router
still sees the EIGRP updates.
In my test I use R6 as the router that is not supposed to see the updates,
and R1 and R4 as legitimate EIGRP neighbors.
I have Cat 3750 though:
interface GigabitEthernet1/0/6
description R6
switchport access vlan 146
switchport mode access
ip access-group DENYEIGRP in
interface GigabitEthernet1/0/1
descr R4
switchport access vlan 146
switchport mode access
end
interface GigabitEthernet1/0/4
descrip R4
switchport access vlan 146
switchport mode access
end
no ip igmp snooping vlan 146
mac-address-table static 0100.5e00.000a vlan 146 interface
GigabitEthernet1/0/1 GigabitEthernet1/0/4
With this configuration, the 3750 and R6 reloaded, i still see the updates
on R6:
Rack1R6#
Rack1R6#
*Aug 9 10:40:15.351: IP: s=150.1.6.6 (local), d=224.0.0.10 (Loopback0), len
60, sending broad/multicast
*Aug 9 10:40:15.351: IP: s=150.1.6.6 (Loopback0), d=224.0.0.10, len 60,
rcvd 2
*Aug 9 10:40:15.923: IP: s=155.1.146.1 (FastEthernet0/0), d=224.0.0.10, len
60, rcvd 2
*Aug 9 10:40:16.479: IP: s=155.1.146.6 (local),
d=224.0.0.10(FastEthernet0/0), len 69, sending broad/multicast
*Aug 9 10:40:16.479: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor
155.1.146.4(FastEthernet0/0) is down: retry limit exceeded
*Aug 9 10:40:16.611: IP: s=155.1.146.4 (FastEthernet0/0), d=224.0.0.10, len
60, rcvd 2
*Aug 9 10:40:16.611: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor
155.1.146.4(FastEthernet0/0) is up: new adjacency
*Aug 9 10:40:16.615: IP: s=155.1.146.6 (local),
d=224.0.0.10(FastEthernet0/0), len 60, sending broad/multicast
*Aug 9 10:40:17.719: IP: s=155.1.146.6 (local),
d=224.0.0.10(FastEthernet0/0), len 69, sending broad/multicast
*Aug 9 10:40:17.719: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor
155.1.146.1(FastEthernet0/0) is down: retry limit exceededun a
Any ideas?
On 8/4/06, spycharlies@hotmail.com <spycharlies@hotmail.com> wrote:
>
> the way i look at it is
>
> on a 3550, igmp snooping is enable by default on all vlans.
>
> using the command "no igmp snooping vlan 1363" is to make sure BB3 does
> not intercept with EIGRP on VLAN 1363.
>
> Your static mac address might be wrong, Multicast hello by default uses
> 224.0.0.10, which results to 0010.5e00.000a. Therefore i would configure
> the static mac address as
>
> mac-address table static 0010.5e00.000a vlan 1363 interface fa0/1 fa0/3
> fa0/6
>
> cheers
> Uyota Oyearone
>
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