Re: SYN Flood ?

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--- Re=E7u de       RVIDOI.BUNTERMA 04 72 96 57 77             04/03/02 =
10.14

For troubleshooting network issues I usually do the three things below
first. Note that this is not just for determining if the address is spoo=
fed.

ping - is it routable, can it respond, is it alive
traceroute - how do I get there, what is the last box before the target
nslookup - who is it

Also try with hostname if/when you get it.

If your corporate firewall doesn't allow traceroute, ping and the rest
through from your PC, try samspade.org for answers. I would also ask the
firewall guys if this traffic is coming from outside.

Matt

------------------------------------------------------------------------=
----

Date: Sun, 3 Mar 2002 14:25:54 -0000
Subject: Re: SYN Flood ?

> Hi
>
> Sorry if this question is too newbieish. I am looking for a way to tra=
ce a
> spoofed IP address ?
>
> Mar  3 01:43:49 localhost kernel: PUB_IN DROP 4 IN=3Dppp0 OUT=3D MAC=3D
> SRC=3D66.33.88.30 DST=3D196.34.156.130 LEN=3D60 TOS=3D0x00 PREC=3D0x40=
 TTL=3D47
> ID=3D27502 DF PROTO=3DTCP SPT=3D3611 DPT=3D113 WINDOW=3D32120 RES=3D0x=
00 SYN URGP=3D0

Hi

do you talk to the host 66.33.88.30 at all ?
this could be normall traffic it could just
be trying todo an ident lookup.

    James



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