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Date: Sat, 3 Jun 2006 21:28:18 +0100
From: Subhi S Hashwa <lists@subhi.com>
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Subject: weird arp issues
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Hello all,

I am having weird issue with arp/mac address on local gateway machine

The following is from /var/log/messages

Jun  3 21:14:58 nile kernel: arp_rtrequest: bad gateway 193.19.XXX.1 (!AF_LINK)

when checking arp table :

chesfw1-e1-0 (193.19.XXX.1) at 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.10.2.0.0.c1.13.e8.1.0.0.0.0.0.0.0.0.ec.0.5.4.1.0.ff.7f.5.4.2.0.33.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.4.0.0.0.0.0.0.20.0.0.0.0.dc.5.0.0.0.0.0.0.b5.f2.81.44.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.10.2.0.0.c1.13.e8.3.0.0.0.0.0.0.0.0.36.12.1.0.6.0.6.0.0.d.60.d4.37.3c.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.38.12.1.0.6.3.6 permanent

The IP is an alias on a local NIC, rather than a remote MAC.
when I try to delete it I get

21:16:41 [root@nile ~]# arp -d -a
delete: cannot locate 193.19.XXX.1

The machine initially boots up fine with the right mac address for the
IP but then it starts showing these errors.

the machine is running routed and pf and is filtering about 20Mbps

21:23:08 [root@nile ~]# netstat -rn|grep 193.19.XXX.1
193.19.XXX.1       193.19.XXX.1       UHLW        1        4    lo0 =>
193.19.XXX.1/32    link#1             UC          0        0    em0

uname:
FreeBSD XXX.XXXX.com 6.0-RELEASE-p5 FreeBSD 6.0-RELEASE-p5

ifconfig :

em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=b<RXCSUM,TXCSUM,VLAN_MTU>
        inet6 fe80::211:43ff:fee7:bd77%em0 prefixlen 64 scopeid 0x1
        inet 193.19.XXX.1 netmask 0xffffffff broadcast 193.19.XXX.1
        inet 192.168.1.1 netmask 0xffffff00 broadcast 192.168.1.255
        ether 00:11:43:e7:bd:77
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active

Any ideas or pointers ?




-- 
Best regards,
 Subhi S Hashwa                          mailto:lists@subhi.com
 When everything is heading your way, you're in the wrong lane.