From owner-freebsd-questions  Thu Jun  6 13:39: 5 2002
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Date: Thu, 06 Jun 2002 16:38:56 -0400
From: Brian Jackson <bjackson@conversent.com>
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To: barbish@a1poweruser.com
Cc: FBSDQ <questions@FreeBSD.ORG>
Subject: Re: adelphia cable dhcp
References: <MIEPLLIBMLEEABPDBIEGEECLCCAA.barbish@a1poweruser.com>
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Hi Joe -

  When I used to have Adelphia (I've since given up on them and gone to 
Verizon DSL) my traceroutes would lead out to a 10.x.x.x address.  In 
other words, my address was on the 10.x space, as was my default router. 
 From there it was blackholed as it traversed their network, and would I 
would get globally routed addresses at their ingress/egress point.

  I never saw any 192.168.x.x addresses.

HTH

Brian

Joe & Fhe Barbish wrote:

>Since recently getting internet access through Adelphia cable 
>service my ipfw firewall has been logging these two recurring packets.
>
>Deny P:2 192.168.100.1 224.0.0.1 in via rl0
>Deny UDP 10.21.68.1:67 255.255.255.255:68 in via rl0
>
>Both 192.168.100.1 & 10.21.68.1 are reserved private ip ranges and 
>should not be coming in over the internet interface.
>
>I am guessing they are part of Adelphia's dhcp process, but want 
>confirmation before allowing then in through my firewall.
>
>Are there any FBSD IPFW Adelphia cable users out there who have seen 
>this and know what they are?
>
>Thanks 
>Joe
>
>
>
>
>
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