Hi Mogens,
Give the linux box two IP numbers externally,
e.g. 130.226.184.38 and 130.226.184.39, register
130.226.184.38 with the journal, change the
internal IP numbers so that:
> [...]
/sbin/iptables -t nat -A POSTROUTING -s 172.20.0.0/17 -o eth0 -j
MASQUERADE
/sbin/iptables -t nat -A POSTROUTING -s 172.20.128.0/17 -o eth0:1 -j
MASQUERADE
eth0:1 is not a real interface so no packets can go out there. It would
be
good if iptables would throw an error, but probably it's hard for the
software
to tell what are 'real' interfaces.
You must use the SNAT target to achieve what you want:
/sbin/iptables -t nat -A POSTROUTING -s 172.20.0.0/17 -o eth0 -j SNAT
--to 130.226.184.38
/sbin/iptables -t nat -A POSTROUTING -s 172.20.128.0/17 -o eth0 -j SNAT
--to 130.226.184.39
(Please note that both rules use eth0 as that's the interface where the
packets
go out).
Hope that helps,
Baltasar
