The value of the object tmnxL2tpTgCfgLocalName specifies
the host name used by this system for the tunnels in this
Layer Two Tunneling Protocol Tunnel Group during the authentication
phase of tunnel establishment.
This object is related to the RADIUS attribute Tunnel-Client-Auth-ID.
It can be used to distinguish tunnels.
An empty string specifies that the system name (SNMPv2-MIB::sysName) is
used.