Re: Strange netmasks.

Keith Owens (kaos@ocs.com.au)
Thu, 24 Jul 1997 11:24:39 +1000

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Previous message: Matthias Urlichs: "Re: Swapping (Was: Werner's latest patch and my News server)"
Maybe in reply to: Richard B. Johnson: "Strange netmasks."

On Wed, 23 Jul 1997 19:00:36 -0400 (EDT),
"Richard B. Johnson" <root@analogic.com> wrote:
>I should be able to mask
>out the rest and therefore only get ARP packets sent to 7, rather than
>254 possible nodes.

ipfwadm -O -i accept -W ppp0 -S 0.0.0.0/0 -D a.b.c.d/29
ipfwadm -O -i deny -W ppp0 -S 0.0.0.0/0 -D 0.0.0.0/0

Allow packets for a.b.c.d through a.b.c.d+7 out on ppp0 and silently
drop everything else.

Or only route the wanted addresses,

route del -net a.b.c.0 netmask 255.255.255.0 gw other-end-of-ip link
route add -net a.b.c.d netmask 255.255.255.248 gw other-end-of-ip link

Previous message: Matthias Urlichs: "Re: Swapping (Was: Werner's latest patch and my News server)"
Maybe in reply to: Richard B. Johnson: "Strange netmasks."