Date: Thu, 24 Sep 2009 13:00:01 -0700 From: Julian Elischer <julian@elischer.org> To: Alexander Motin <mav@FreeBSD.org> Cc: freebsd-net <freebsd-net@freebsd.org> Subject: Re: Point-to-Point interfaces regressions Message-ID: <4ABBCFC1.9010003@elischer.org> In-Reply-To: <4ABBAC87.4040306@FreeBSD.org> References: <4ABBAC87.4040306@FreeBSD.org>
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Alexander Motin wrote: > I have found few cases, that were working fine before, but not so good > now on CURRENT. > > There is two interfaces: > bge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM> > ether 00:1b:24:c5:5b:09 > inet 192.168.3.131 netmask 0xffffff00 broadcast 192.168.3.255 > inet 10.0.0.1 netmask 0xffffff00 broadcast 10.0.0.255 > media: Ethernet autoselect (100baseTX <full-duplex>) > status: active > ng0: flags=88d1<UP,POINTOPOINT,RUNNING,NOARP,SIMPLEX,MULTICAST> metric 0 > mtu 1500 > > 1) I am going to reuse Ethernet address as local for PtP link: > %ifconfig ng0 10.0.0.1 10.0.0.2 > ifconfig: ioctl (SIOCAIFADDR): File exists > %ifconfig ng0 > ng0: flags=88d1<UP,POINTOPOINT,RUNNING,NOARP,SIMPLEX,MULTICAST> metric 0 > mtu 1500 > inet 10.0.0.1 --> 10.0.0.2 netmask 0xff000000 > So as you can see, address was assigned, but request returned error > status. Probably it is related to the recent local address route changes. yes the new code adds a route to 'yourself' for the local end of p2p links. which collides with the route to the ethernet's own address (I think). there is a sysctl to change this behaviour but I forget what it is. I'm not sure I like the new behaviour.. Qing Li is the man to discuss this with, > > 2) I am going to configure arp-proxy: > %arp -s 10.0.0.2 00:1b:24:c5:5b:09 pub > arp: writing to routing socket: Invalid argument > And again it doesn't work, writing to syslog: > kernel: lla_rt_output: RTM_ADD publish (proxy only) is invalid >
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