Status of this Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited.

Status of this Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited.

Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

No abstract

State of Peer-to-Peer (P2P) Communication acrossNetwork Address Translators (NATs) Status of This MemoThis memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. AbstractThis memo documents the various methods known to be in use by applications to establish direct communication in the presence of Network Address Translators (NATs) at the current time. Although this memo is intended to be mainly descriptive, the Security Considerations section makes some purely advisory recommendations about how to deal with security vulnerabilities the applications could inadvertently create when using the methods described. This memo covers NAT traversal approaches used by both TCP-and UDP-based applications. This memo is not an endorsement of the methods described, but merely an attempt to capture them in a document.