iptables & libipq question

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Hi,

I'm starting to test libipq.a and see if it is part of the solution to
my problem.  My problem is that I'm trying to write a user-space bridge.
My question is if I can take packets captured by a Linux box using
libipq and send them over a serial link (eg: null-modem cable) to another
Linux box running libipq.  I want the other Linux box to
re-inject the packet with NF_ACCEPT and let the packet take it's course.
What I'm worried about is if Netfilter will reject my packet on the
receiving end because of the "packet_id" somehow.
This is the layout:

Host A -|
        |
Host B -|            serial
        |- Bridge 1 ======== Bridge 2 -|
                                       |- Host C
                                       |
                                       |- Host D


I'm trying to build a prototype and where the serial link is not
a null-modem but a type of radio.  Will this work or is there a better
way?


Thanks,
Tuan


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