From owner-freebsd-stable  Fri Sep  3  0:47:14 1999
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Date: Fri, 03 Sep 1999 00:46:57 -0700
From: Derrick <dlow3@earthlink.net>
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To: freebsd-ipfw@freebsd.org
Subject: Help with masquerading hybrid cable modem connection
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I am having trouble masquerading my hybrid cable modem connection in
FreeBSD.  By
hybrid, I mean it uses a normal analog ppp account to dial out for
uploads (it's an
Earthlink account, by the way) and a Com21 cable modem for the
downloads.  They
haven't yet implemented the two-way on the cable connection yet.  You
dial ppp as
normal and it gives you your ip automatically.  It's not a normal
account, it
automatically uses your ethernet card for downloading somehow.  In
FreeBSD I can
connect fine (I can't even get it working in Linux) but I am having
trouble
masquerading. Is it even possible to masquerade this kind of hybrid
connection in
FreeBSD?  I have IPFIREWALL, IPDIVERT, and IPFIREWALL_DEFAULT_TO_ACCEPT
in my kernel config.  I've tried natd -n ed1 and natd -n tun0.  I've
tried dialing ppp with and
without the -alias flag.

I've tried:  ipfw add divert natd all from any to any via ed1
I've tried:  ipfw add divert natd all from any to any via tun0
And I've tried: ipfw add 100 divert natd  ip from any to any out recv
ed1 xmit tun0

None of these seems to work, what am I doing wrong?  Please help!  Any
info would be
helpful.  Thanks in advance.

Derrick



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