kaber@trash.net writes:

The following patches contain an updated version of IPv6 NAT against
Linus' current tree.

The series is organized as follows:

- Patches 01-03 contain bugfixes for SIP helper bugs/regressions
  present in the current kernel

Why not just delete this code?  The current best practices are to
disable ALGs for SIP.  To the point in some circles people recommend
running SIP over TLS to avoid over helpful NAT ALGs.

Eric