Date: Thu, 19 Mar 2015 11:25:00 +0900 From: "Paul S." <contact@winterei.se> To: freebsd-net <freebsd-net@freebsd.org> Subject: Re: Unremovable ARP entry and 'address already in use' Message-ID: <550A337C.9030905@winterei.se> In-Reply-To: <550A3271.2040501@winterei.se> References: <550A3271.2040501@winterei.se>
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I just noticed that when obfuscating the IP, I added two dots. Please excuse them, the IP is proper (110.62.211.87 for the purposes of this thread) On 3/19/2015 午前 11:20, Paul S. wrote: > Hi, > > Seeing this on 10.1-release p5. > > FreeBSD ipfw-0.syd.fqdn.tld 10.1-RELEASE-p5 FreeBSD 10.1-RELEASE-p5 #0 > r278455: Mon Feb 9 07:18:21 UTC 2015 > root@ipfw-0.syd.fqdn.tld:/usr/obj/usr/src/sys/qfkern amd64 > > Basically, I have a static arp entry that I cannot remove. This in > itself is not a problem. Problem is, when trying to assign that IP > address to the same interface, it says the 'address is in use' (which > it is not) > > ? (110.62..211.87) at 00:12:c0:88:03:8f on ix1 permanent [ethernet] > > Attempting to remove the entry produces an invalid argument error. > > root@ipfw-0:~ # arp -d 110.62..211.87 > arp: writing to routing socket: Invalid argument > > ix1 does not have this IP configured anymore either. > > ix1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > description: FW Upstream 0 > options=8400bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,VLAN_HWTSO> > > ether 00:12:c0:88:03:8f > inet6 fe80::212:c0ff:fe88:38f%ix1 prefixlen 64 scopeid 0x2 > nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> > media: Ethernet autoselect (10Gbase-LR <full-duplex>) > status: active > > When I try to assign it back to ix1, I get this > > root@ipfw-0:~ # ifconfig ix1 inet 110.62..211.87 netmask 255.255.254.0 > ifconfig: ioctl (SIOCAIFADDR): Address already in use > > I've verified with the provider that there isn't an arp entry at > present for this IP address, so the issue seems local to freebsd. > > Anyone ever see anything like this? > > I'm aware rebooting will fix it, but this is a live firewall and I'd > rather not do that.
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