Re: [dcp] DCP and IPv6?

[Eddie Kohler <kohler@icir.org>]

Hey Derek,

> At the moment it appears that the checksum is just over the DCP data,
> and does not include any pseudo header.  Given the lack of an IP header
> checksum in IPv6,  the DCP header checksum should really be calculated
> in a similar fashion to the TCP/UDP header checksum - including a psuedo
> header.  So for IPv6 the header pseudo header should be as shown in
> section 8.1 of RFC 2460.
> 
> The mobility part of the DCP draft obviously won't work ggiven that it
> embeds an IPv4 address.

Thanks for pointing out these issues! We've modified the draft to (a)
include a network-level pseudoheader in the DCCP checksum calculation, and
(b) embed an Address Family number in the DCCP-Move packet, with Old
Address taking that family, so that the packet supports both IPv4 and IPv6.

Anybody think of any other DCCP-IPv6 issues?

Eddie

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