Subject: misc/10295: ipnat vs. ipforwarding
To: None <>
From: Bill Sommerfeld <>
List: netbsd-bugs
Date: 06/06/2000 05:37:12
>Number:         10295
>Category:       misc
>Synopsis:       ipnat vs. ipforwarding
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    misc-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jun 06 05:38:00 PDT 2000
>Originator:     Bill Sommerfeld
>Release:        20000606
System: NetBSD thunk 1.4ZA NetBSD 1.4ZA (VAIO) #70: Mon Jun 5 23:06:24 EDT 2000 root@:/usr/wes/sys-current/arch/i386/compile/VAIO i386

Channelling for Paul Hoffman:

ipnat needs ip forwarding turned on in order to be anything more than
a waste of kvm.

There should be an rc.conf setting for IPv4 ip forwarding allowing you
to tweak this one way or the other.

/etc/rc.d/ipnat should notice if/when sysctl net.inet.ip.forwarding is
turned off and either whine, or fix it itself (exactly which doesn't
really matter to me).

	turn on ipnat, don't turn on IP forwarding, be confused for a bit.

	probably small.