Date: Sun, 19 Feb 2012 22:39:13 -0800 From: Kevin Oberman <kob6558@gmail.com> To: =?KOI8-R?B?68/O2MvP1yDl18fFzsnK?= <kes-kes@yandex.ru> Cc: freebsd-net@freebsd.org Subject: Re: freebsd sends arp queries for IP's in not it subnet Message-ID: <CAN6yY1spw3ko8Ct6gE637G9TzCAE_92YJ=w9M_VB1FjA==PQtg@mail.gmail.com> In-Reply-To: <47346273.20120219153713@yandex.ru> References: <47346273.20120219153713@yandex.ru>
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2012/2/19 ëÏÎØËÏ× å×ÇÅÎÉÊ <kes-kes@yandex.ru>: > # tcpdump -n -i vlan7 > tcpdump: verbose output suppressed, use -v or -vv for full protocol decode > listening on vlan7, link-type EN10MB (Ethernet), capture size 65535 bytes > 15:37:59.202052 ARP, Request who-has 10.12.101.240 tell 10.11.19.147, length 28 > 15:37:59.258459 ARP, Request who-has 10.83.29.192 tell 10.11.19.147, length 28 [...] > ^C > 45 packets captured > 47 packets received by filter > 0 packets dropped by kernel > # ifconfig vlan7 > vlan7: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > š š š šoptions=3<RXCSUM,TXCSUM> > š š š šether f4:6d:04:7c:7b:d3 > š š š šinet 10.11.19.149 netmask 0xfffffff8 broadcast 10.11.19.151 > š š š šinet6 fe80::f66d:4ff:fe7c:7bd3%vlan7 prefixlen 64 scopeid 0x7 > š š š šinet 10.11.19.145 netmask 0xfffffff8 broadcast 10.11.19.151 > š š š šinet 10.11.19.147 netmask 0xfffffff8 broadcast 10.11.19.151 > š š š šnd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> > š š š šmedia: Ethernet autoselect (1000baseT <full-duplex>) > š š š šstatus: active > š š š švlan: 7 parent interface: re0 Looks suspicious, but what is the output of 'netstat -rnf inet'? That will say what addresses are in a range that is routed or one that is reached directly using ARP to get the MAC address. -- R. Kevin Oberman, Network Engineer E-mail: kob6558@gmail.com
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