Dot1q Tunnel ?

From: kevin gannon (kevin@gannons.net)
Date: Fri Oct 07 2005 - 15:25:03 GMT-3

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Doing some testing with dot1q tunnels and want to figure out
what is the destination address of the tunneled packets once
they get into the SP network. the docs say its a multicast
which makes sense as you need to flood everywhere so I
ran a little test to see for myself. Below is a snippet from
the SP switch reciving the tunneled packets:

mac access-list extended TUNNEL
 deny host 0100.0ccd.cdd0 any
 deny any host 0100.0ccd.cdd0
 permit any any
!
interface FastEthernet0/13
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 2-4094
 switchport mode dynamic desirable
 mac access-group TUNNEL in
!

Where fas 0/13 is the port reciving the tunneled packets from the
neighboring switch. However with the ACL in place I can get
tunneled traffic across no problem. I am afraid I dont have
physical access to my lab to use a sniffer to check the destination
is what the doc's say.

Am I missing something (apart from coffee) ?

Regards
Kevin

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