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How do I add a second IP address range to the interface0/0?

I have Cisco router 2600, how do I add a second IP address range to the interface0/0?
You need to add secondary keyword after sunet when you assign this IP address to the interface.

Example:

ip address 1.1.1.1 255.255.255.0
ip address 2.2.2.2 255.255.255.0 secondary

2.2.2.2 will be secondary IP address for the interface
This was last published in June 2003

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