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Loopback

IrfanKhan4904
Level 1
Level 1

I want to configure Loopback on Cisco Router 7206VXR.But the error is

 

7206(config)#interface loopback 191

7206(config-if)#ip address 121.52.153.68 255.255.255.255 % 119.156.30.90 overlaps with GigabitEthernet0/1

------------------------

But interface gigabitethernet0/1 is

interface GigabitEthernet0/1

description ****Mainlink****

IP address 121.52.153.70 255.255.255.252

 

Any idea?

3 Replies 3

Hello,

 

the IP address displayed in the error message doesn't make any sense, the error itself obviously does,

 

121.52.153.68 255.255.255.255 is the IP address of the subnet used for 121.52.153.69 255.255.255.252 and 121.52.153.70 255.255.255.252, so you cannot use that address...

 

Martin L
VIP
VIP

 

The Rule is a router must have each of its own interfaces on different subnets or networks (aka no sharing). So, you router cannot have 2 interfaces on same subnet/network.

 

Regards, ML
**Please Rate All Helpful Responses **

mohAmed khAdr
Level 1
Level 1

.68 is z subnet add of this prefix and it does overlap.