dhcp on the wan interface of a 881-router

[michel.eerdekens]

                   Hello,

I configured a Cisco 881 as a vpn-client.

When I configure the wan-interface with ip add dhcp , it never gets an IP-address.

When I remove the crypto map from the wan-interface , the interface gets an IP-address without any problem.

According to examples in the Cisco documentation, I should work; and it works on a 831.

Attached file with configuration, sh ip int   and the different firmware versions I tested:

[Jennifer Halim · Accepted solution]

The reason why the DHCP is not working is because your crypto ACL 120 has "permit ip any any":

access-list 120 permit ip any any

Remove that line and DHCP should work fine.

[michel.eerdekens]

Thank you, that did it

[Jennifer Halim · Accepted solution]

Excellent, good to hear it's working now.

Pls kindly mark your post answered so others can learn from it. Thanks.