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 =EB=CF=CE=D8=CB=CF=D7 =E5=D7=C7=C5=CE=C9=CA <kes-kes@yandex.ru>: > # tcpdump -n -i vlan7 > tcpdump: verbose output suppressed, use -v or -vv for full protocol decod= e > 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, len= gth 28 > 15:37:59.258459 ARP, Request who-has 10.83.29.192 tell 10.11.19.147, leng= th 28 [...] > ^C > 45 packets captured > 47 packets received by filter > 0 packets dropped by kernel > # ifconfig vlan7 > vlan7: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu = 1500 > =9A =9A =9A =9Aoptions=3D3<RXCSUM,TXCSUM> > =9A =9A =9A =9Aether f4:6d:04:7c:7b:d3 > =9A =9A =9A =9Ainet 10.11.19.149 netmask 0xfffffff8 broadcast 10.11.19.15= 1 > =9A =9A =9A =9Ainet6 fe80::f66d:4ff:fe7c:7bd3%vlan7 prefixlen 64 scopeid = 0x7 > =9A =9A =9A =9Ainet 10.11.19.145 netmask 0xfffffff8 broadcast 10.11.19.15= 1 > =9A =9A =9A =9Ainet 10.11.19.147 netmask 0xfffffff8 broadcast 10.11.19.15= 1 > =9A =9A =9A =9And6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> > =9A =9A =9A =9Amedia: Ethernet autoselect (1000baseT <full-duplex>) > =9A =9A =9A =9Astatus: active > =9A =9A =9A =9Avlan: 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. --=20 R. Kevin Oberman, Network Engineer E-mail: kob6558@gmail.com
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