[CUWiN] nat bogosity (was: circular route)
dyoung at pobox.com
Fri Jan 20 15:38:56 CST 2006
On Fri, Jan 20, 2006 at 03:28:06PM -0500, simon-cuw at uc.org wrote:
> ipnat.conf's manpage indicates that you can negate a subnet from the mapping.
> If I do the following on Node A, it seems to get me a bit closer:
> map sip0 from 10.0.0.0/8 ! to 192.168.42.0/24 -> 192.168.42.22/32 tcp/udp 10000:20000
> map sip0 from 10.0.0.0/8 ! to 192.168.42.0/24 -> 192.168.42.22/32
> I'm just having trouble confirming that 100%, as I don't have access to any systems on
> LAN-Z right now.
I see how that could work. Run with it.
BTW, on 0.6.0 the NAT rules are like this, which does not quite have
the desired effect:
rdr sip0 192.168.0.1/32 port 80 -> 127.0.0.1 port 80 tcp
map sip0 from 10.0.0.0/8 ! to 10.0.0.0/8 -> 192.168.42.22/32 \
portmap tcp/udp 10000:20000
map sip0 from 10.0.0.0/8 ! to 10.0.0.0/8 -> 192.168.42.22/32
Eventually I will switch from ipf(4) to pf(4), which will give us a lot
more NAT flexibility. I may have to do it sooner rather than later.
David Young OJC Technologies
dyoung at ojctech.com Urbana, IL * (217) 278-3933
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