User name for the authentication If an authenticated L2TP tunnel is to be established between two devices, the entries 'Identifier' and 'Hostname' need to cross match.
- SNMP ID:
 - 2.2.35.6
 - Console path:
 - Setup > WAN > L2TP-Endpoints
 - Possible values:
 Max. 64 characters from #[A-Z][a-z][0-9]@{|}~!$%&'()+-,/:;<=>?[\]^_. `