You can gain information such as P2P group details, IP address of client connected to P2P, the connection status with server, availability of P2P relay, and etc. from Proud.CNetClient.
• Proud.CNetClient.GetGroupMembers
• Proud.CNetClient.GetIndirectServerTime
• Proud.CNetClient.GetLastUnreliablePingSec
• Proud.CNetClient.GetLocalHostID
• Proud.CNetClient.GetLocalJoinedP2PGroups
• Proud.CNetClient.GetP2PServerTime
• Proud.CNetClient.GetPeerInfo
• Proud.CNetClient.GetPeerReliableUdpStats
• Proud.CNetClient.GetRecentUnreliablePingSec
• Proud.CNetClient.GetServerAddrPort
• Proud.CNetClient.GetServerConnectionState
• Proud.CNetClient.GetServerTime
• Proud.CNetClient.GetServerTimeDiff
More details can be found from Proud.CNetClient guide.