If the VPRN site is to support IPv6 addressing (for router advertisement or neighbor discovery) or VRRP objects, perform the following procedure to configure an SNMP community for mediating the IPv6 objects. You can configure multiple read-only and read-write SNMP communities on a VPRN site for virtual CPE management.

When the NFM-P uses SNMPv2 for device mediation, you must configure one and only one SNMP community string for the VPRN site. Otherwise, there is no mediation of the VPRN IPv6 objects on the site, and the NFM-P raises an alarm. The alarm is cleared and mediation resumes after the configuration is modified so that exactly one SNMP community string is associated with the VPRN site. The SNMP community must be set before an ISIS site can be added to the VPRN.

You can associate a list of IP addresses with an SNMP community. Only addresses that appear on the list have permission to use the associated SNMP community. Creating and configuring the list is performed using CLI; see the appropriate node documentation for more information about using SNMP community configuration commands.

Source access lists

You can use SNMP source access lists configured on the NE when configuring an SNMP community on a VPRN service. You can add SNMP source access lists to a VPRN site SNMP community string. Source access control lists cannot be configured through SNMP. They need to be configured on the NE using the CLI. You cannot modify or delete SNMP source access lists in the NFM-P.