[c-nsp] Allow only PPPoE packets on specific vlans

[Alexander Moskalenko]

Joe Maimon wrote:
> The below has worked for me in the past, mostly used on routers acting 
> as NAS's
> 
> #sh access-lists 201
> Type code access list 201
>     permit 0x8864 0x0000
>     permit 0x8863 0x0000
> 
> 
I tried this on Catalyst 3550

mac access-list extended PPPoE
  permit any any 0x8863 0x0
  permit any any 0x8864 0x0
  deny   any any
vlan access-map PPPoE 10
  action forward
  match mac address PPPoE
vlan access-map PPPoE 20
  action drop
vlan filter PPPoE vlan-list x,y,z,w


First i applied it on 1 switch all was good. Then i started to apply it 
to all others and when i configured the 5-th i lost ALL network.
Only vlan where control interfaces of catalysts worked.