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Diffstat (limited to 'draft-gsenger-anycast-relay-00.txt')
| -rw-r--r-- | draft-gsenger-anycast-relay-00.txt | 144 |
1 files changed, 128 insertions, 16 deletions
diff --git a/draft-gsenger-anycast-relay-00.txt b/draft-gsenger-anycast-relay-00.txt index a04df99..17b560a 100644 --- a/draft-gsenger-anycast-relay-00.txt +++ b/draft-gsenger-anycast-relay-00.txt @@ -2,8 +2,8 @@ Network Working Group O. Gsenger -Internet-Draft March 10, 2007 -Expires: September 11, 2007 +Internet-Draft March 2007 +Expires: September 2, 2007 Anycast stream relaying @@ -32,7 +32,7 @@ Status of this Memo The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. - This Internet-Draft will expire on September 11, 2007. + This Internet-Draft will expire on September 2, 2007. Copyright Notice @@ -52,7 +52,7 @@ Copyright Notice -Gsenger Expires September 11, 2007 [Page 1] +Gsenger Expires September 2, 2007 [Page 1] Internet-Draft Anycast stream relaying March 2007 @@ -61,9 +61,9 @@ Abstract The anycast tunneling (anytun) protocol defines a protocol used for communication between unicast clients and anycast servers. It can be - used for tunneling information between 2 clients or in relay mode to - transmit data form the client over the servers to a third party not - using the protocol and vice versa. + used for tunneling information between 2 clients over the servers or + in relay mode to transmit data form the client over the servers to a + third party not using the protocol and vice versa. @@ -108,7 +108,7 @@ Abstract -Gsenger Expires September 11, 2007 [Page 2] +Gsenger Expires September 2, 2007 [Page 2] Internet-Draft Anycast stream relaying March 2007 @@ -127,7 +127,11 @@ Internet-Draft Anycast stream relaying March 2007 RFC3068 [1] DTD. -1.1. Tunneling Mode +1.1. Operation modes + +1.1.1. Tunnel modes + +1.1.1.1. Tunneling Mode In tunneling mode the payload of the anytun packet is transmitted from one unicast host to the anycast server. This server makes a @@ -135,7 +139,115 @@ Internet-Draft Anycast stream relaying March 2007 new anytun package to one or more clients depending on the routing descition. -1.2. Relay Mode +1.1.1.2. Open tunnel mode + + In open tunnel mode only one of two clients talking to each other + over the server MUST use the anytun protocol. mode a client using the + anytun protocol, that wants to tunnel data, is building a connection + to the anycast servers using the anytun protocol. The anycast + servers relay the encapsulated packages directly to the destination + without using the anytun protocol. Therefor for the destination it + saems that it is talking to the client directly. + +1.1.1.3. relay mode + +1.1.2. Transport modes + +1.1.2.1. anycast udp mode + +1.1.2.2. unicast tcp with anycast initialisation + +1.1.2.3. full anycast tcp + + + + + + +Gsenger Expires September 2, 2007 [Page 3] + +Internet-Draft Anycast stream relaying March 2007 + + +1.1.2.3.1. keep alive message request + + Most NAT routers need a tcp connection to transmit some packets once + in while to stay open. In full anycast tcp mode anytun hast to + predict the tcp state including the sequence number. Synconisation + of the sequence number would be to much overhead, so a keep alive + intervall is agreed. This interval is used to calculate the sequemce + number. + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +Gsenger Expires September 2, 2007 [Page 4] + +Internet-Draft Anycast stream relaying March 2007 + + +2. Protocol specification + +2.1. Header format + + + + + + + + + + + + + + + + + + + + @@ -164,7 +276,7 @@ Internet-Draft Anycast stream relaying March 2007 -Gsenger Expires September 11, 2007 [Page 3] +Gsenger Expires September 2, 2007 [Page 5] Internet-Draft Anycast stream relaying March 2007 @@ -220,12 +332,12 @@ Appendix A. The appan -Gsenger Expires September 11, 2007 [Page 4] +Gsenger Expires September 2, 2007 [Page 6] Internet-Draft Anycast stream relaying March 2007 -2. References +3. References [1] Huitema, C., "An Anycast Prefix for 6to4 Relay Routers", RFC 3068, June 2001. @@ -276,7 +388,7 @@ Internet-Draft Anycast stream relaying March 2007 -Gsenger Expires September 11, 2007 [Page 5] +Gsenger Expires September 2, 2007 [Page 7] Internet-Draft Anycast stream relaying March 2007 @@ -332,7 +444,7 @@ Author's Address -Gsenger Expires September 11, 2007 [Page 6] +Gsenger Expires September 2, 2007 [Page 8] Internet-Draft Anycast stream relaying March 2007 @@ -388,5 +500,5 @@ Acknowledgment -Gsenger Expires September 11, 2007 [Page 7] +Gsenger Expires September 2, 2007 [Page 9] |