[Dshield] Scanning from

warpmedia warpmedia at comcast.net
Fri Sep 26 21:59:48 GMT 2003

Only partially true. I have filters up for this, with exceptions on DHCP 
ports from the addresses needed to keep my connection up.

At 16:09 9/26/2003, Kenneth Porter wrote:
>FYI, Comcast (previously AT&T) is using the 10/8 block for some kind of
>internal network and this address shows up in traceroute replies from their
>routers and from their DHCP relays. This prevents customers from using ingress
>filtering for these netblocks if they want to use traceroute or DHCP (and they
>must use the latter).
>Here's the first few entries for a traceroute to our favorite service:
>traceroute to dshield.org (, 30 hops max, 38 byte packets
>  1 (  17.699 ms  13.924 ms  12.223 ms
>  2 (  15.083 ms  9.119 ms  8.098 ms
>  3 (  8.664 ms  8.435 ms  9.344 ms

Joshua MacCraw
warpmedia at comcast.net

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