Date: Mon, 14 Sep 1998 15:57:29 +1200 (NZST) From: Andrew McNaughton <andrew@squiz.co.nz> To: security@FreeBSD.ORG Subject: odd icmp packet Message-ID: <Pine.BSF.3.96.980914154959.300B-100000@aniwa.sky>
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I monitor odd packets on broadcast channels, and this turned up in my logs: Sep 14 14:57:55 dawn /kernel: ipfw: 60100 Accept ICMP:11.0 xxx.xx.xx.xx 255.255.255.255 in via de0 xxx.xx.xx.xx is not on my subnet, but the machine which recorded this is not behind a firewall except in so far as it runs its own filters ICMP:11.0 indicates time exceeded in transit. Can someone explain what might have caused this. Am I correct in thinking that because ICMP packets do not generate responses this does not have DoS relevance? Andrew McNaughton To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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