User manual
 Creating a New Group
Page 19-21
Step 2. Configuring the Virtual Router Port (Optional)
You can now optionally configure the virtual router port that the default VLAN in this Group 
will use to communicate with other VLANs. When you define a virtual router, a virtual router 
port for the default VLAN in the Group is created. If you do not define a virtual router, no 
virtual router port is created and the default VLAN in the new Group will be “firewalled,” 
unable to communicate with other VLANs.
♦ Important Note ♦
Use caution when setting up routing on the default 
VLAN for a Group. In some configurations enabling 
routing on the default VLAN may not be necessary or 
desirable. You can always enable routing on other, 
non-default VLANs, within this Group. Refer to 
AutoTracker Application Example 4 in Chapter 24 for 
more information.
You will have the choice of configuring 
IP, IPX, or both IP and IPX routing. Continue with the 
steps below:
a. After answering 
n to the Enable ATM CIP? prompt, the following prompt displays:
Enable IP (y):
Press <Enter> if you want to enable IP Routing on this virtual router port. If you do not 
enable IP, then the default VLAN in this Group will not be able to route IP data. If you 
don’t want to set up an IP router, enter n, press <Enter> and skip to Step j.
♦ Note ♦
You may enable routing of both 
IP and IPX traffic on 
this router port. If you set up dual-protocol routing, you 
must fill out information for both IP and IPX parame-
ters.
b. The following prompt displays:
IP Address:
Enter the IP address for this virtual router port in dotted decimal notation (e.g., 
198.206.181.10). This IP address is assigned to the virtual router port of the default 
VLAN 
within this Group. After you enter the address, press <Enter>.
c. The following prompt displays:
IP Subnet Mask (0xffffff00):
The default IP subnet mask (in parentheses) is automatically derived from the default 
VLAN IP address class. Press <Enter> to select the default subnet mask or enter a new 
subnet mask in dotted decimal notation or hexadecimal notation and press <Enter>. 
d. The following prompt displays:
IP Broadcast Address (198.200.10.255):
The default IP broadcast address (in parentheses) is automatically derived from the default 
VLAN IP address class. Press <Enter> to select the default address or enter a new address in 
dotted decimal notation and press <Enter>. 










