Description Globally disable Layer 3 forwarding between VLANs.
Syntax [no] l3-vlan-fwd-disable
Default By default, the ACOS device can forward Layer 3 traffic between VLANs.
Mode Configuration mode
Usage This command is applicable only on ACOS devices deployed in gateway (route) mode. If the option to disable Layer 3 forwarding between VLANs is configured at any level, the ACOS device can not be changed from gateway mode to transparent mode, until the option is removed.
Depending on the granularity of control required for your deployment, you can disable Layer 3 forwarding between VLANs at any of the following configuration levels:
• Global – Layer 3 forwarding between VLANs is disabled globally, for all VLANs, on ACOS devices deployed in gateway mode. (Use this command at the Configuration mode level.)
• Individual interfaces – Layer 3 forwarding between VLANs is disabled for incoming traffic on specific interfaces. (See the “l3-vlan-fwd-disable” command in the Network Configuration Guide.)
• Access Control Lists (ACLs) – Layer 3 forwarding between VLANs is disabled for all traffic that matches ACL rules that use the l3-vlan-fwd-disable action. (See access-list (standard) or access-list (extended).)