I looked at the code and first tried to disable DPD packets (using --dpd-idle 0) as this was the only difference in the logged communication exchange, but this didn't help.
I finally added NAT Traversal Mode cisco-udp to my vpnc conf file and vpnc works again. http://www.gossamer- threads.com/lists/vpnc/devel/1874?search_string=no%20response%20from%20target;#1874 -- vpnc no response from target https://bugs.launchpad.net/bugs/257451 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs