Hi,
I got a Catalyst 3750 working with the IP features IOS.
I tried to configure some MAC filters in a couple interfaces and they seem not to work properly...
The scenario is the following. I got 4 busses (hubs) that are connected to a bridge. The bridge has to be changed because it is defective. It is a Hirschmann bridge with some strange proprietary filters that could be only implemented in it.
There is actually no replacement for this device, and I thought I could use a Catalyst for it. Since in each port of the bridge will be connected to a hub, some access lists have to be implemented.
This is the configuration example of one of the lists:
mac access-list extended filter1
deny host 0800.0601.1201 any
deny host 0800.0601.1202 any
deny host 0800.0601.1203 any
deny host 0800.0601.1204 any
deny host 0800.0601.1205 any
deny host 0800.0601.1206 any
deny host 0800.0601.1207 any
deny host 0800.0601.1208 any
deny host 0800.0601.1209 any
deny host 0800.0601.1210 any
deny host 0800.0601.1211 any
deny host 0800.0601.1212 any
deny host 0800.0601.1213 any
deny host 0800.0601.1214 any
deny host 0800.0601.1215 any
deny host 0800.0601.1216 any
deny host 0800.0601.1217 any
deny host 0800.0601.1218 any
deny host 0800.0601.1219 any
deny host 0800.0601.1220 any
permit any any
exit
!
!
interface GigabitEthernet1/0/1
switchport access vlan 10
switchport mode access
speed auto
mac access-group filter1 in
no shutdown
!
The problem is that sometimes it works, sometimes does not, sometimes after restart works and minutes later stop working....
I do not really know what the issue can be!
thanks for your help!
best regards,
Fabio
