Re: ipnat and ipv6

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

On Tue, Aug 11, 2015 at 04:28:04PM +0100, Patrick Welche wrote:
> Before I hunt to far, anyone see why line 1 is OK, but line 2 is BAD?
> 
> # cat /etc/ipnat.conf
> rdr xennet0 0/0 port 80 -> 127.0.0.1 port 3200 tcp
> rdr xennet0 ::0/0 port 80 -> ::1 port 3200 tcp
> # ipnat -f /etc/ipnat.conf
> syntax error error at ":", line 2
> 
> Yet according to ipnat(5)
> 
>        For shorthand notations such as "0/32", the equivalent for IPv6 is
>        "0/128". IPFilter will treat any netmask greater than 32 as an implicit
>        direction that the address should be IPv6, not IPv4.  To be unambiguous
>        with 0/0, for IPv6 use ::0/0.

Despite ipnat(5), it seems that ::0/0 just is not accepted.

rdr xennet0 inet6 any port 80 -> ::1 port 3200 tcp

does the trick...


Cheers,

Patrick