Re: [IPsec] I-D Action: draft-ietf-ipsecme-ike-tcp-01.txt

2012-12-13 Thread Paul Wouters
On Fri, 14 Dec 2012, Valery Smyslov wrote: Thinking it over, I kind of regret adding the port field to the TCP_SUPPORTED notification. We don't have any mechanism for alternate UDP ports. Yes, UDP has cheap liveness checks to keep the mapping in the NAT so that requests can be initiated to the

Re: [IPsec] I-D Action: draft-ietf-ipsecme-ike-tcp-01.txt

2012-12-13 Thread Valery Smyslov
Hi Yoav, Hi Valery Thinking it over, I kind of regret adding the port field to the TCP_SUPPORTED notification. We don't have any mechanism for alternate UDP ports. Yes, UDP has cheap liveness checks to keep the mapping in the NAT so that requests can be initiated to the original initiator, w

Re: [IPsec] I-D Action: draft-ietf-ipsecme-ike-tcp-01.txt

2012-12-13 Thread Paul Hoffman
On Dec 13, 2012, at 9:20 AM, Yoav Nir wrote: > Hi Valery > > Thinking it over, I kind of regret adding the port field to the TCP_SUPPORTED > notification. We don't have any mechanism for alternate UDP ports. Yes, UDP > has cheap liveness checks to keep the mapping in the NAT so that requests c

Re: [IPsec] I-D Action: draft-ietf-ipsecme-ike-tcp-01.txt

2012-12-13 Thread Yoav Nir
Hi Valery Thinking it over, I kind of regret adding the port field to the TCP_SUPPORTED notification. We don't have any mechanism for alternate UDP ports. Yes, UDP has cheap liveness checks to keep the mapping in the NAT so that requests can be initiated to the original initiator, while TCP doe

Re: [IPsec] I-D Action: draft-ietf-ipsecme-ike-tcp-01.txt

2012-12-11 Thread Valery Smyslov
Hi, I'm a bit uncomfortable with the requirement that IKE peer "MUST" advertise NAT device port if it is reachable and "MUST NOT" if it isn't. I think, that IKE Initiator in most cases cannot reliably determine whether it is reachable or not. For example, even if you manually configured port forw

[IPsec] I-D Action: draft-ietf-ipsecme-ike-tcp-01.txt

2012-12-03 Thread internet-drafts
A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the IP Security Maintenance and Extensions Working Group of the IETF. Title : A TCP transport for the Internet Key Exchange Author(s) : Yoav Nir F