--- 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 ------------------------------------------------------------------------ To unsubscribe email security-discuss-request@linuxsecurity.com with "unsubscribe" in the subject of the message. ---- 04/03/02 10.14 ---- Envoy=E9 =E0 -----------------------------= -------- -> security-discuss(a)linuxsecurity.com ------------------------------------------------------------------------ To unsubscribe email security-discuss-request@linuxsecurity.com with "unsubscribe" in the subject of the message.