cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
443
Views
0
Helpful
1
Replies
Highlighted
Beginner

Cisco DHCP client injects static routes in config

I have a Cisco 876 router running 12.4.(15)T5, configured as DHCP client.  This works nicely.

A Cisco 886 router, running 15.1 software also works with the DHCP client.  This also works but has the following strange beheaviour:

In the running-config an ip route 0.0.0.0 0.0.0.0 <dhcp assigned address> appears.

Also - some other static routes that are in the config using the dhcp keyword are duplicated with the dhcp-assigned address

Now - when a write mem is done, these dhcp-generated route entry's are stored in the startup-config...

This beheaviour is completely different and VERY unwanted.  After a change from DHCP server the config will simply stop working, when a write mem was done at the first DHCP situation.

Should we stop using write mem commands when a DHCP client is active in IOS?  Is it a bug? Is it a feature?

1 REPLY 1
Highlighted
Beginner

Ok, i'm probably hitting bug CSCtj89334....