0
HQ>enable

Password: 

HQ#config terminal

Enter configuration commands, one per line.  End with CNTL/Z.

HQ(config)#int s0/0

HQ(config-if)#ip add 209.165.201.3 255.255.255.252

Bad mask /30 for address 209.165.201.3

HQ(config-if)#

How can I change?

1
  • 209.165.201.3 it's a broadcast IP for 209.165.201.3/30 (Network IP is .0 first usable IP is .1 second usable ip is .2 and .3 is the broadcast IP) what network and IP do you have on the other end of the cable?
    – Zatarra
    Jul 7, 2016 at 14:38

2 Answers 2

3

Because 209.165.201.3 is the last IP address in the network 209.165.201.0/30 and thus is the broadcast address, it is not available for use as a host inside the network.

0

With a 255.255.255.252 subnet mask, the ip address you are specifying is the broadcast address

BROADCAST=209.165.201.3
NETWORK=209.165.201.0

You will only be able to use 209.165.201.1 or 209.165.201.2 as an IP address.

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