How to exclude RFC1918 IP addresses in #Show IP Inter Brief Command?

[bravealikhan]

Hi,

Is there any way I could exclude RFC1918 addresses in my #Show IP Interface Brief Commend to just see what interfaces keeps Public IP Addresses?

Thanks

[balaji.bandi]

not that i am aware cisco have that command reference on box, you can redirect the output and do some script to get output what you looking

[Georg Pauwen · Accepted solution]

Hello,

I don't have a live prompt available right now for testing, but I think the syntax should be something like below:

show ip int brief | exc 10|172|192

[bravealikhan]

Thanks Georg, I used the same  

[Karsten Iwen]

But it will also exclude lots of public IPs. Everything where these numbers are not in the first octets. And even in the first octets it would exclude 172.0.x.y to 172.15.x.x and 172.32.x.y+

This would be my suggestion:

sh ip int brie | e una|_10\..*\..*\.|_172\.(1[6-9]|2[0-9]|3[01])\..*\.|192\.168\..*\.

[bravealikhan]

Awesome, thanks..