Network address as router IP address

[lucas restrepo]

Hi,

I kind of remember that there was a feature in cisco that allow you to use the network address of a subnet as the first usable ip address but i can remember how this is done.

my question is if this is possible?

tkx

[Federico Coto Fajardo]

Hi,

You cannot use the network address as an IP address because it represents the network itself.

I think you're referring to the option to use the first usable subnet with the command ''ip subnet-zero'' command.

i.e.

10.0.0.0/24

In theory you can use:

10.1.1.0/24

10.1.2.0/24

10.1.3.0/24

and so on....

With the above command that is enabled by deafult, you can use 10.0.0.0/24 as a valid subnet also.

Hope it helps.

Federico.

[Mahesh Gohil]

Hello Lucas,

It may be like you have seen 10.0.0.0 addreds configured on interface.

Yes possible only with /32 address where it is iteself network/broadcast address. Normally people

configure it on loopback address

Regards

Mahesh