Historical Archive: The information and utilities on this site are preserved for historical record and archive purposes only. They are deprecated and should not be used in production environments.
Ipforwarding
If you are using a dual-homed gateway and your O/S permits compile-time setting of _ipforwarding, disable it as you rebuild the kernel
SunOs: (/sys/netinet/in_proto.c)
ip_forwarding == -1 never forward; never change this value.