With IPHost Network Monitor you can run simple snmp requests against a Alcatel device in your network.
vMobilePortDefVlanEnable
v Mobile Port Default Vlan Enable
1.3.6.1.4.1.6486.800.1.2.1.4.1.1.2.1.1.4
Indicates default vlan enable state. When enabled, the port is not prevented from forwarding and receiving frames in the default vlan as appropriate. When disabled, the port is prevented from forwarding and receiving frames in the default vlan. Non-mobile ports that are potentially mobile do not have this property - a get returns notApplicable.
Back to ALCATEL-IND1-GROUP-MOBILITY-MIB MIB page.
IPHost Network monitor allows you to monitor vMobilePortDefVlanEnable on Alcatel device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Alcatel routers right now.