A.1 Network Address Translators (NATs) and Transition Gateways (TrGWs)

33.2103GPPIP network layer securityNetwork Domain Security (NDS)Release 17TS

Network Address Translators (NATs) are not designed to be part of the network domain control plane of NDS/IP-networks. Since network domain security employs a chained-tunnel approach it may be possible to use NATs provided that the network is carefully configured.

NDS/IP provides no explicit support for Transition Gateways (TrGWs) to be used in the network domain control plane of NDS/IP-networks, but the NDS/IP architecture will not itself prohibit the use of TrGWs. However, the inclusion of TrGWs needs to be carefully executed in order not to create interoperability problems.