>>> From: Mark Verber <verber @
parc .
xerox .
com>
>>> Date: Fri, 04 Mar 1994 17:11:19 PST
> > >Note: unless 4.1.3.U1 has changed from 4.1.3, turning off ip forwarding
> > >*does not* turn off source routing. If you have full sources you need
> > >to modify /sys/netinet/ip_input.c or get a patch from Sun to disable
> >
> > options IPFORWARDING
>
> with adb works just as well as editing ip_proto.c. Once again, my primary
> warning is that source routing happens whether you have IPfowarding on
or off.
Given that we are talking about sunos machines, on sunos 4.*:
Actually, you want to set IPFORWARDING=-1. Setting it to 0 disables
forwarding on a single homed machine, and re-enables it (sets it back
to 1) on a multi-homed machine. Setting it to -1 leaves it
permanently disabled.
When disabled, source routing only happens if the packet leaves on the
same interface it arrived at.
Kannan
References:
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