Filtering traffic from Multiple VLANs in a single Virtual

From: Akhtar Rasool (akhtar.samo@gmail.com)
Date: Mon Feb 11 2008 - 13:19:50 ARST


Hi all,

Can we use a single Virtual Context for filtering traffic from Multiple
VLANs. It should be any how possible b/c we are having a license of only 20
or 22 Virtual Contexts & lots Customer VLANs.

I tried to make a 2nd SVI(int Vlan56) an Internal interface but its not
working......... Do help me out so that this context(Companyxyz-Internal)
fiters traffic for multiple VLANs.

FWSM Firewall Version 3.2(2)

CFWSM-FW# sh run

interface Vlan30
 description CUSTOMER-1
!
interface Vlan50
 description External

interface Vlan56
 description CUSTOMER-2

admin-context Companyxyz-Internal
context Companyxyz-Internal
  description admin-context Companyxyz-Internal
  allocate-interface Vlan30
  allocate-interface Vlan56
  allocate-interface Vlan50
  config-url disk:/Companyxyz-Internal
  join-failover-group 1

CFWSM-FW# changeto context Companyxyz-Internal
CFWSM-FW/Companyxyz-Internal#sh run

interface Vlan30
 nameif inside
 security-level 100
 ip address 172.16.33.1 255.255.255.0 standby 172.16.33.2
!
interface Vlan50
 nameif outside
 security-level 0
 ip address 172.16.66.4 255.255.255.248 standby 172.16.66.5

interface Vlan56
 no nameif
 no security-level
 no ip address

CFWSM-FW/Companyxyz-Internal(config)# int vlan 56
**** WARNING ****
Configuration Replication is NOT performed from Standby unit to Active unit.
        Configurations are no longer synchronized.
CFWSM-FW/Companyxyz-Internal(config-if)# nameif inside
WARNING: VLAN *56* is not configured.
*ERROR: Name "inside" has been assigned to interface Vlan51
*CFWSM-FW/Companyxyz-Internal(config-if)#

Regards,

Akhtar



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