Cisco 881 router allow outbound VPN for PPTP and IPSec

Posted on 2013-09-10
Medium Priority
Last Modified: 2013-09-11
We have a Cisco 881 router that is blocking our contractors from using their VPN's (both Cisco IPsec and Microsoft PPTP) connections back to their offices. I have attached a configuration file to help.
Question by:Pangeia
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Expert Comment

by:Jody Lemoine
ID: 39482751
This configuration looks good for IPSec pass through, but you'll need to permit GRE inbound on your 110 ACL in order to get PPTP pass through to work.
LVL 22

Accepted Solution

Jody Lemoine earned 2000 total points
ID: 39482755
Just a follow-up. Because your router is using IPSec itself and because NAT is being used, the Cisco VPN Clients will need to have NAT transparency enabled on the VPN concentrators that they're connecting to.

Author Closing Comment

ID: 39483231
Thank you, the combination of the access-list and NAT worked for both VPN clients.

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