I have been using openconnect for a long time now with our corporate VPN. I upgraded my personal laptop to Ubuntu 18.04 and I can no longer receive network traffic once connect.
I use the following command to connect:
/usr/bin/sudo /usr/sbin/openconnect --juniper --servercert $CERT --user=$USERNAME $HOST
I have to use the --servercert flag because of how the certs were installed on the VPN servers.
Anyway, this has been working flawlessly for the last few versions of Ubuntu.
With 18.04, the /etc/resolve.conf file is getting modified as expected, openconnect itself reports no issues, but once I am connected, I receive no traffic.
I have been doing some reading that the kernel with 18.04 may require some changes to the /etc/sysctl.conf file.
Is there anyone who can help figure out why I no longer receive traffic once connected the VPN via openconnect?
I assume since it doesn't appear to be DNS, that this is a problem with the tunnel.
I am going to compare to my 17.10 machine to see if there is something obvious which is different.
Any help would be greatly appreciated!