Just to confirm the announcement I made at the SIP meeting this morning....

This meeting is now on... It will be held in:

Hilton Rooms 10, 11, & 12 Thursday 17:45 -> 19:00 (although we'll make it shorter if we can)

Hope to see you there.

Pete.

============================================= Pete Cordell Tech-Know-Ware pete@tech-know-ware.com +44 1473 635863 =============================================

----- Original Message ----- From: Pete Cordell pete@tech-know-ware.com To: midcom@ietf.org; 'sip-ietf (E-mail)' sip@ietf.org; sipping@ietf.org; SG16 ITU-SG16@MAILBAG.INTEL.COM; TIPHON@LIST.ETSI.FR Cc: Steve Davies SDavies@Ridgeway-Sys.com Sent: 01 August 2001 10:03 Subject: VoIP Traversal of Non-upgraded Firewall & NATs @ IETF

Dear All,

I would like to have a meeting at the IETF (informal BOF?) discussing methods for VoIP and Multimedia over IP traversing non-upgraded firewalls and NATs. These methods are intended to supplement the firewall architecture, and not require upgrade to existing firewall/NAT components, or clients (and other infrastructure such as proxies).

There is a draft discussing one proposal at:

http://www.ietf.org/internet-drafts/draft-davies-fw-nat-traversal-00.txt

If others have ideas in this area, then please contact me and we can

arrange

some sort of agenda. (Although note that I will be out of contact until

the

Sunday before the IETF - i.e. this Sunday! - so we might have to organise this at the IETF.)

I hope the format will be something like:

• Overview presentation of method
• How this is secure and maintains administrator control
• (Repeat for each proposal)
• Collect issues that need to be addressed before going to a formal BOF.

(The modified agenda involves the final item being changed to 'chaos'!)

At this stage I would like to avoid discussion about how this compares to MidCom and other approaches - such as Rosenberg's - as I think it will quickly turn into a blood bath. - We should save that for the formal BOF!

I'm hoping to hold the meeting in:

The King's Suite/Sandringham 1 on
Thursday 17:45 -> 18:45,

but I obviously haven't had a chance to check this with the organisers. Therefore, please look out for final details on the noticeboard, and probably the door of the King's Suite.

I look forward to seeing you all,

Pete.

(P.S. Sorry for putting this on the SG16 and TIPHON lists, but I'm well aware that many of you attend the IETF and I wanted to make sure you had

the

opportunity to come along.)

============================================= Pete Cordell Tech-Know-Ware pete@tech-know-ware.com

+44 1473 635863

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