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Published in:
2010 | OriginalPaper | Chapter
P-CSCF’s Algorithm for Solving NAT Traversal
Authors : Jung-Ho Kim, Jae-Hyoung Cho, Jae-Oh lee
Published in: Security-Enriched Urban Computing and Smart Grid
Publisher: Springer Berlin Heidelberg
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Many ways for efficient use of limited IP address of IPv4 are existed. The one of these ways is to construct the private network using Network Address Translator (NAT). NAT filtering rule makes network management easier. However, NAT Filtering rule makes NAT Traversal. Many solutions like Simple Traversal of UDP through NAT (STUN), Traversal Using Relay NAT (TURN) and Media Relay method exist. But these solutions require additional servers or devices. So, we suggest that P-CSCFs in the IP Multimedia Subsystem (IMS) change the packet’s header and solve the NAT Traversal without any additional equipment.