Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

More then two IP-addresses on a interface. Possible???

I need to give a single interface on a Cisco 6509 three IP-adresses. Is this possible?

Here's why:

I got three subnet routers(IBM 2210). They are all connected to another router(a IBM 8272). I am going to move the three routes from the 8272, away from the 2210, and over to a Cisco 6509.(Between these boxes, there are a an IBM router and a Catalyst 3548. These three routes from the 8272 need to go in on a single interface on the 6509.(The reason to that is that I eventually want to get rid of the 2210 routers, and put all the routes to the 2210, in to a single route from the 8272 to the Cisco 6509. But in the test fase I'm only going to do it in the configuration, and not physically move any cables or routers. And when I have configured three ip addreses on the singel interface on the 6509, I'm going to turn of the 2210's to see if it works)

Ornulf Lindblom

1 REPLY
Cisco Employee

Re: More then two IP-addresses on a interface. Possible???

You can specify an unlimited number of secondary addresses per interface. It would look like this:

interface vlan 10

ip address 10.1.1.1 255.255.255.0

ip address 10.2.2.2 255.255.255.0 secondary

ip address 10.3.3.3 255.255.255.0 secondary

see the following link on configuring IP addressing for more details:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/np1_c/1cprt2/1cipadr.htm

126
Views
0
Helpful
1
Replies
CreatePlease login to create content