tmnxMobServPcS5S8PgwCtrlAddr 1.3.6.1.4.1.6527.3.1.2.66.2.4.1.20

The value of tmnxMobServPcS5S8PgwCtrlAddr indicates the IPv4 address of the Pakcet Data Network Gateway (PGW) currently used for sending the control plane signaling on S5 or S8 reference point.