Date: Mon, 11 Sep 2017 20:56:38 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 222240] multiple ICMP echo requests reported when ping broadcast Message-ID: <bug-222240-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D222240 Bug ID: 222240 Summary: multiple ICMP echo requests reported when ping broadcast Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: hannes@mehnert.org When I send a broadcast ping, and run tcpdump on the same host, I see multi= ple ICMP echo requests in tcpdump (with slightly different timestamps). Runnin= g a tcpdump on a different host in the same broadcast domain only sees one ICMP echo request!. # ping 192.168.0.255 PING 192.168.0.255 (192.168.0.255): 56 data bytes ... # tcpdump -lni wlan0 icmp 21:45:41.833915 IP 192.168.0.6 > 192.168.0.255: ICMP echo request, id 22192, seq 0, length 64 21:45:41.833927 IP 192.168.0.6 > 192.168.0.255: ICMP echo request, id 22192, seq 0, length 64 21:45:42.896747 IP 192.168.0.6 > 192.168.0.255: ICMP echo request, id 22192, seq 1, length 64 21:45:42.896758 IP 192.168.0.6 > 192.168.0.255: ICMP echo request, id 22192, seq 1, length 64 I reported this earlier on transport@ (https://lists.freebsd.org/pipermail/freebsd-transport/2016-September/00014= 5.html) and it was cross-posted to net@ (https://lists.freebsd.org/pipermail/freebsd-net/2016-September/046105.html) gnn@ reported he can reproduce this on 11 as well. I just checked, and it this behaviour is still present in CURRENT (r322062) --=20 You are receiving this mail because: You are the assignee for the bug.=
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