RFC 6773. which requires a full udp checksum for nat traversal. Lloyd Wood http://about.me/lloydwood ________________________________________ From: ietf [ietf-bounces@xxxxxxxx] On Behalf Of Stewart Bryant [stbryant@xxxxxxxxx] Sent: 31 January 2014 10:50 To: Greg Daley; 'Noel Chiappa'; ietf@xxxxxxxx; mpls@xxxxxxxx Subject: Re: [mpls] Last Call: <draft-ietf-mpls-in-udp-04.txt> (Encapsulating MPLS in UDP) to Proposed Standard On 30/01/2014 22:44, Greg Daley wrote: > Of course, in order to get the protocols to pass legacy firewall > inspection, UDP encapsulation may be required, and companies would > have to actually implement the protocol... Greg Daley > gdaley@xxxxxxxxxxxxxxxx So UDP/DCCP/MPLS ? Stewart