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Date:      Sun, 06 Jan 2002 21:29:42 -0600
From:      Len Conrad <LConrad@Go2France.com>
To:        Freebsd-questions@freebsd.org, freebsd-net@FreeBSD.ORG
Subject:   multi-NIC broadcasting: it isn't
Message-ID:  <5.1.0.14.2.20020105114006.0291fec0@mail.Go2France.com>

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4.4-20020101-STABLE with 5 nics

ifconfig_fxp0="inet 10.1.1.1 netmask 255.255.255.0 media autoselect"
ifconfig_fxp1="inet 10.1.2.1 netmask 255.255.255.0 media autoselect"
ifconfig_fxp2="inet 192.168.253.59 netmask 255.255.255.0 media autoselect"
ifconfig_fxp3="inet 10.1.4.1 netmask 255.255.255.0 media autoselect"
ifconfig_fxp4="inet 10.1.5.1 netmask 255.255.255.0 media autoselect"

we can ping from a PC on net 10.1.5.0/24 to a PC on net 10.1.1.0/24, so box 
as gateway and routing are working.

then send broadcasts from the PC on 10.1.5.0/24 to these ports:

255.255.255.255 port 26790
255.255.255.255 port 26791
255.255.255.255 port 26792
255.255.255.255 port 26793

trafshow indicates that broadcasts originate on 10.1.5.0/24, but nothing 
appears on the other nets.

Suggestions where to look?

Len


http://MenAndMice.com/DNS-training
http://BIND8NT.MEIway.com : ISC BIND 8.2.4 for NT4 & W2K
http://IMGate.MEIway.com : Build free, hi-perf, anti-abuse mail gateways


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