Snort mailing list archives
ICMP / drop.
From: Rudi Starcevic <rudi () oasis net au>
Date: Thu, 09 Oct 2003 16:13:40 +1000
Hi, I'm trying to drop all icmp/ping packets on my Debian box in the US. I'm in Australia. So I've added this rule to my Iptables script: /sbin/iptables --append INPUT -p icmp -s ! 127.0.0.1/32 -j DROP This works fine from my side. I'm unable to get any Ping responses. However some are still getting through. Here is a sample Snort log alert. [**] ICMP PING CyberKit 2.2 Windows [**] 10/08-22:42:48.897689 4.34.170.219 -> 64.235.238.29 ICMP TTL:114 TOS:0x0 ID:10694 IpLen:20 DgmLen:92 Type:8 Code:0 ID:768 Seq:59374 ECHO How can I make it so my machine replies to *no* icmp packets ? I've even gone and installed CyberKit on an old Windows box to see if I could generate and alert but it didn't work.So I don't understand how my icmp packets are denied but not 4.34.170.219 in the above log sample.
Many thanks Best regards Rudi. ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. SourceForge.net hosts over 70,000 Open Source Projects. See the people who have HELPED US provide better services: Click here: http://sourceforge.net/supporters.php _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
Current thread:
- ICMP / drop. Rudi Starcevic (Oct 09)
- Re: ICMP / drop. Ralf Spenneberg (Oct 09)
- Re: ICMP / drop. Rudi Starcevic (Oct 09)
- Re: ICMP / drop. Edin Dizdarevic (Oct 09)
- Re: ICMP / drop. Rudi Starcevic (Oct 09)
- Re: ICMP / drop. Edin Dizdarevic (Oct 09)
- Re: ICMP / drop. Rudi Starcevic (Oct 09)
- Re: ICMP / drop. Ralf Spenneberg (Oct 09)