[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the IP Security Protocol Working Group of the IETF.
Title : IKEv2: ECN Requirements for IPsec Tunnels
Author(s) : D. Black
Filename : draft-ietf-ipsec-ikev2-ecnfix-00.txt
Pages : 7
Date : 2003-1-22
IPsec (IP Security) tunnel encapsulation and decapsulation were
specified prior to the addition of ECN (Explicit Congestion
Notification) to IP, with the potential result that ECN congestion
indications could be discarded by IPsec tunnel decapsulators. The
current ECN specification includes two ECN operating modes for
IPsec tunnels to avoid this situation, and IKEv1/ISAKMP (Internet
Key Exchange/Internet Security Association and Key Management
Protocol) negotiation extensions to enable ECN to be used correctly
with IPsec tunnels. To simplify this situation, IKEv2 requires
changes to tunnel decapsulation that prevent discarding of ECN
congestion indication, obviating the need for multiple ECN
operating modes and associated negotiation support.
A URL for this Internet-Draft is:
To remove yourself from the IETF Announcement list, send a message to
ietf-announce-request with the word unsubscribe in the body of the message.
Internet-Drafts are also available by anonymous FTP. Login with the username
"anonymous" and a password of your e-mail address. After logging in,
type "cd internet-drafts" and then
A list of Internet-Drafts directories can be found in
Internet-Drafts can also be obtained by e-mail.
Send a message to:
In the body type:
NOTE: The mail server at ietf.org can return the document in
MIME-encoded form by using the "mpack" utility. To use this
feature, insert the command "ENCODING mime" before the "FILE"
command. To decode the response(s), you will need "munpack" or
a MIME-compliant mail reader. Different MIME-compliant mail readers
exhibit different behavior, especially when dealing with
"multipart" MIME messages (i.e. documents which have been split
up into multiple messages), so check your local documentation on
how to manipulate these messages.
Below is the data which will enable a MIME compliant mail reader
implementation to automatically retrieve the ASCII version of the