Connection ID issue using anyconnect client

[Martin Oehler]

Hi list,

I' using ocserv (current 0.11.5) with radius accounting (radcli).

If I connect to the server with the openconnect client, the ID that
is passed to the connect script is equal to the nasportid that is
passed to the radius server. This is fine since it allows to easily
identify connections on both sides.

However, when the Cisco Anyconnect client connects, e.g. the version
currently available on iOS, these IDs do not match but interestingly
they are quite similar.

Some examples: 

ocserv connection ID - nasportid

14525 - 14522
657   - 653
31287 - 31243
30829 - 30742

Is this by purpose?

Thanks,
Martin