The value of tmnxBsxTransitIpPolicySeenIp specifies whether or not to initiate dynamic transit subscriber creation when traffic is detected on a parent SAP or Spoke SDP. When tmnxBsxTransitIpPolicySeenIp and tmnxBsxTransitIpPolicyRadius are both enabled a RADIUS Access Request message is sent to the RADIUS server. The RADIUS server must respond with a transit subscriber create message. When tmnxBsxTransitIpPolicySeenIp and tmnxBsxTransitIpPolicyAutoCreate are both enabled a transit subscriber will be dynamically created for each IP address without a policy server. The use of Seen IP to learn transit subscribers is mutually exclusive with the use of DHCP for this purpose.