Date: Sun, 29 Aug 2010 00:29:26 +0200 From: Bernd Walter <ticso@cicely7.cicely.de> To: freebsd-net@freebsd.org Cc: Bernd Walter <ticso@cicely7.cicely.de> Subject: Re: Problem with link-local addresses on USB interfaces Message-ID: <20100828222926.GF82417@cicely7.cicely.de> In-Reply-To: <20100828220844.GE82417@cicely7.cicely.de> References: <20100828220844.GE82417@cicely7.cicely.de>
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On Sun, Aug 29, 2010 at 12:08:44AM +0200, Bernd Walter wrote:
> cicely13# ifconfig
> re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
> options=399b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_UCAST,WOL_MCAST,WOL_MAGIC>
> ether 00:01:08:00:79:92
> inet 10.1.1.15 netmask 0xffffff00 broadcast 10.1.1.255
> inet6 fe80::201:8ff:fe00:7992%re0 prefixlen 64 scopeid 0x1
> inet6 2002:559f:e31:1::15 prefixlen 64
> nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
> media: Ethernet autoselect (1000baseT <full-duplex>)
> status: active
> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
> options=3<RXCSUM,TXCSUM>
> inet 127.0.0.1 netmask 0xff000000
> inet6 ::1 prefixlen 128
> inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
> nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
> ue0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
> ether 2a:44:14:0c:74:00
> inet6 fe80::2844:14ff:fe0c:7400%ue0 prefixlen 64 scopeid 0x3
> nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
> ue1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
> options=80000<LINKSTATE>
> ether 00:06:07:14:47:ff
> inet6 fe80::206:7ff:fe14:47ff%ue1 prefixlen 64 scopeid 0x4
> nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
> media: Ethernet autoselect (100baseTX <full-duplex>)
> status: active
>
> cicely13# ping6 -c 1 fe80::201:8ff:fe00:7992%re0
> PING6(56=40+8+8 bytes) fe80::201:8ff:fe00:7992%re0 --> fe80::201:8ff:fe00:7992%re0
> 16 bytes from fe80::201:8ff:fe00:7992%re0, icmp_seq=0 hlim=64 time=0.760 ms
>
> --- fe80::201:8ff:fe00:7992%re0 ping6 statistics ---
> 1 packets transmitted, 1 packets received, 0.0% packet loss
> round-trip min/avg/max/std-dev = 0.760/0.760/0.760/0.000 ms
>
> cicely13# ping6 -c 1 fe80::1%lo0
> PING6(56=40+8+8 bytes) fe80::1%lo0 --> fe80::1%lo0
> 16 bytes from fe80::1%lo0, icmp_seq=0 hlim=64 time=0.939 ms
>
> --- fe80::1%lo0 ping6 statistics ---
> 1 packets transmitted, 1 packets received, 0.0% packet loss
> round-trip min/avg/max/std-dev = 0.939/0.939/0.939/0.000 ms
>
> [71]cicely13# ping6 -c 1 fe80::2844:14ff:fe0c:7400%ue0
> PING6(56=40+8+8 bytes) fe80::2844:14ff:fe0c:7400%ue0 --> fe80::2844:14ff:fe0c:7400%ue0
>
> --- fe80::2844:14ff:fe0c:7400%ue0 ping6 statistics ---
> 1 packets transmitted, 0 packets received, 100.0% packet loss
> Exit 2
>
> [72]cicely13# ping6 -c 1 fe80::206:7ff:fe14:47ff%ue1
> PING6(56=40+8+8 bytes) fe80::206:7ff:fe14:47ff%ue1 --> fe80::206:7ff:fe14:47ff%ue1
>
> --- fe80::206:7ff:fe14:47ff%ue1 ping6 statistics ---
> 1 packets transmitted, 0 packets received, 100.0% packet loss
> Exit 2
>
> Only the PCI and loopback interface responds to their own link local
> address.
>
> I'm also puzzled about what I need to configure on an interface
> to get an link-local address.
> I've finally put ifconfig_ue0/1="UP" into rc.conf.
I can't even ping my own non unicast addresses:
ue0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 2a:44:14:0c:74:00
inet6 fe80::2844:14ff:fe0c:7400%ue0 prefixlen 64 scopeid 0x3
inet6 2002:559f:e31:2::15 prefixlen 64 tentative
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
ue1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=80000<LINKSTATE>
ether 00:06:07:14:47:ff
inet6 fe80::206:7ff:fe14:47ff%ue1 prefixlen 64 scopeid 0x4
inet6 2002:559f:e31:3::15 prefixlen 64 tentative
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
[92]cicely13# ping6 2002:559f:e31:3::15
PING6(56=40+8+8 bytes) 2002:559f:e31:1::15 --> 2002:559f:e31:3::15
^C
--- 2002:559f:e31:3::15 ping6 statistics ---
3 packets transmitted, 0 packets received, 100.0% packet loss
[93]cicely13# ping6 2002:559f:e31:2::15
PING6(56=40+8+8 bytes) 2002:559f:e31:1::15 --> 2002:559f:e31:2::15
^C
--- 2002:559f:e31:2::15 ping6 statistics ---
2 packets transmitted, 0 packets received, 100.0% packet loss
And why are those declared to be tentative?
I just configured them with ifconfig as I used to do.
--
B.Walter <bernd@bwct.de> http://www.bwct.de
Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
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