* how to i fwd bcast?
@ 2006-05-11 12:33 varun
2006-05-11 13:51 ` Chinh Nguyen
0 siblings, 1 reply; 2+ messages in thread
From: varun @ 2006-05-11 12:33 UTC (permalink / raw)
To: netfilter-devel
Hi all,
Can anyone tell me how to fwd udp bcast packets from one
n/w to another using iptables?
Varun
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: how to i fwd bcast?
2006-05-11 12:33 how to i fwd bcast? varun
@ 2006-05-11 13:51 ` Chinh Nguyen
0 siblings, 0 replies; 2+ messages in thread
From: Chinh Nguyen @ 2006-05-11 13:51 UTC (permalink / raw)
To: varun; +Cc: netfilter-devel
Perhaps someone else will correct me, but you cannot forward bcast packets using
iptables and network interfaces.
You can redirect bcast to the local machine via REDIRECT target. You can DNAT
bcast, but again only to local machine addresses. Everything else and the packet
disappears.
To fwd bcast you will need to create an ethernet bridge between your (2)
interfaces via brctl. If you wish to filter bcast packets you can use ebtables.
I believe that iptables also work with bridges.
Chinh
http://www.certicom.com/
varun wrote:
> Hi all,
>
> Can anyone tell me how to fwd udp bcast packets from one n/w
> to another using iptables?
>
> Varun
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2006-05-11 12:33 how to i fwd bcast? varun
2006-05-11 13:51 ` Chinh Nguyen
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