Forwarding IP packets

[Paul Clayton]

How does one configure HPUX 11.00 to forward IP packets between interface cards.

[Tim D Fulford]

to see waht it is:
ndd -get /dev/tcp ip_forwarding

to set it
ndd -set /dev/tcp ip_forwarding 1

o - No forwarding
1 - Forwarding
2 - forwarding if multiple interfaces

I'd set to 1

Tim

[Paul Clayton]

Brilliant!! That is the one command I did not try.

thanx

[T G Manikandan]

To list current settings
# ndd -get /dev/ip ip_forwarding

To set to new value
# ndd -set /dev/ip ip_forwarding 0

The changes will be lost after a reboot .Make entries in /etc/rc.config.d/nddconf file.
TRANSPORT_NAME[0]=ip
NDD_NAME[0]=ip_forwarding
NDD_VALUE[0]=0

ndd -c will apply changes.


Thanks

[rick jones]

unless someone has explicitly disabled it, since you said "interface cards" it implies you already have multiple interfaces, and HP-UX will by default forward packets.

there is a bit more to it of course - you have to have systems on either side of the HP-UX box configured to use the HP-UX box as a router.