Riverstone Networks WICT1-12 User Manual

25-14   Riverstone Networks RS Switch Router User Guide   Release 8.0 

Layer-4 Bridging and Filtering

  Security Configuration

25.4.2

Placing the Ports on the Same VLAN

Once you have created a VLAN for the ports to be used in layer-4 bridging, you add those ports to the VLAN. To add 
ports to a VLAN, enter the following command in Configure mode:

To add the ports in the example in 

, to the blue VLAN you would enter the following command:

25.4.3

Enabling Layer-4 Bridging on the VLAN

After adding the ports to the VLAN, you enable Layer-4 Bridging on the VLAN. To do this, enter the following 
command in Configure mode:.

For example, to enable Layer-4 Bridging on the blue VLAN:

25.4.4

Creating ACLs to Specify Selection Criteria for Layer-4 Bridging

Access control lists (ACLs) specify the kind of filtering to be done for Layer-4 Bridging. 

In the example in 

, to allow the consultants access to the file server for e-mail (SMTP) traffic, but not for 

Web (HTTP) traffic — and allow e-mail, Web, and FTP traffic between the engineers and the file server, you would 
create ACLs that allow only SMTP traffic on the port to which the consultants are connected and allow SMTP, HTTP, 
and FTP traffic on the ports to which the engineers are connected.

Add ports to a VLAN.

 

 

rs(config)# vlan add ports et.1.1,et.1.2,et.1.3 to blue

Enable Layer 4 bridging.

rs(config)#