Avatar of rgeist554
rgeist554 asked on

Cisco ASA Site-to-Site VPN. Tunnel is MM_Active, but no traffic passes

Hello,

So basically I'm trying to set up a site to site VPN from Aberdeen to Houston with a Cisco ASA 5505 at each end. I have the tunnel active, but I am unable to ping the remote WAN/LAN addresses from each side of the tunnel.

From the ASA's I am able to ping the outside interface of each end of the tunnel, but not the inside interface or remote LAN addresses.

I'm somewhat new to Cisco VPNs and kind of stumped as to what my next steps should be.

Attached is the config for both ends.

*edit* Just for clarification on the HoustonAsa config - the tunnel-group that I'm having problems with is x.x.x.235.
HoustonAsa.txt
AberdeenAsa.txt
Internet Protocol SecurityNetwork OperationsHardware Firewalls

Avatar of undefined
Last Comment
rgeist554

8/22/2022 - Mon
Jody Lemoine

If you're reaching MM_ACTIVE, this says that the VPN isn't completing its negotiation. The ISAKMP state will go to IDLE once this has happened. As a start, I would permit 500/udp and esp in your outside_access_in ACLs and see if this gets you any further.
ASKER CERTIFIED SOLUTION
rgeist554

Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
Sign up - Free for 7 days
or
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
See how we're fighting big data
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a question
Jody Lemoine

I think it's time to turn on some ISAKMP debugging to see what's happening with the negotiation.  Can you turn on "debug crypto isakmp" and post a sample of what's showing up in the log?
ASKER
rgeist554

ISAKMP showed me it was not getting to phase 2. Corrected encryption settings on both sides and it was fine.
This is the best money I have ever spent. I cannot not tell you how many times these folks have saved my bacon. I learn so much from the contributors.
rwheeler23