[Dshield] Should I be concerned about this?

E.B. Dreger eddy+public+spam at noc.everquick.net
Wed Jun 26 04:36:28 GMT 2002


M> Date: Tue, 25 Jun 2002 20:34:33 -0400
M> From: Mercy

(snipped throughout)


M> "The firewall has blocked routed traffic from 68.71.167.143 to
M> 222.174.130.106 (IP Protocol 117).

IP protocol 117 == interactive agent transfer protocol

I don't offhand know of anything using it.  Note that 222.... is
a class D multicast address.  Do you know if you're running any
multicast-aware software?


M> "ZoneAlarm blocked an incoming data packet that was addressed
M> to port 0 on another computer. The packet was either

Same warning?  I don't know that protocol 117 even has ports. :-)
But, then, I don't know anything about IP/117.


M> This alert generally occurs either as a result of random
M> routing problems on the Internet or a configuration issue on a

Random routing problems are rare.  There'd need to be some funky
ARP trouble to cause a "configuration issue", too.

Mercy, does your provider support multicast?  Have you any other
computers connected to the same network?  What software do you
have running?


M>      traceroute 68.71.167.143
M> 
M>       3    206.117.161.1    8.015 ms   DNS error [AS226] .....

BGP-aware traceroute.... mmmm....


Eddy
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