First these are class B's.
16 is right because there are 4 bits included for the Net's!
The correct summary is 172.92.160.0/20
look:
Router(config)#ip route 172.92.172.20 255.255.240.0 fastEthernet 0
%Inconsistent address and mask
Router(config)#ip route 172.92.160.0 255.255.240.0 fastEthernet 0
Router(config)#
John Swartz
ccie, ccnp, ccdp, mcse+i, mcsd, cne
Boson Software and Training
KRANG Router Simulator at http://www.routeru.com
----- Original Message -----
From: ""Gert Jan"" <[EMAIL PROTECTED]>
Newsgroups: groupstudy.cisco
Sent: Thursday, July 20, 2000 6:46 AM
Subject: IP Summary
> All,
>
> How many class C addresses can be summarized with 172.92.172.20/20?
>
> Is 16 the correct answers? Because there's 4 bit's left for host
addresses?
> 2 powered by 4 is 16.
>
> Can one of you confirm this.
>
> Thanks a lot.
> Cheers,
> Peter
>
>
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