Re: Interfaces connected by bridge(4) do not pass arp replies

On Tue, Oct 30, 2012 at 2:29 PM, Kim Culhan <w8hdkim_at_gmail.com> wrote:
> On Tue, Oct 30, 2012 at 8:19 AM, Gleb Smirnoff <glebius_at_freebsd.org> wrote:
>>   Kim,
>>
>> On Mon, Oct 29, 2012 at 05:59:04PM -0400, Kim Culhan wrote:
>> K> >> What svn revision of FreeBSD -current are you running?
>> K> >
>> K> > FreeBSD head r238604.
>> K>
>> K> I should have mentioned earlier this is with r242126, there have been
>> K> some changes
>> K> to the network code since 238604, maybe that is why you don't have this problem.
>>
>> If you can do binary search, that may be valuable.
>>
>> --
>> Totus tuus, Glebius.
>
> Ok I can begin that process, Monthadar since you have an earlier
> version can you try
> a test:
>
> From a machine on one of your 2 interfaces, can you ping a machine on
> the other interface?

Yes

>
> Do you see the MAC for a machine on the other interface in the arp table?

Yes

>
> When this problem is present, it is possible to reach the router and
> out to the internet
> (if it is routed that way) but in the case of the wireless interface,
> for example, you cannot
> reach a machine on the wired interface.
>
> The interfaces here:
>
> bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>         ether 02:f3:8d:7d:04:00
>         inet 10.0.0.1 netmask 0xffffff00 broadcast 10.0.0.255
>         nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>         id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
>         maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200
>         root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0
>         member: msk0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
>                 ifmaxaddr 0 port 2 priority 128 path cost 55
>         member: em0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
>                 ifmaxaddr 0 port 1 priority 128 path cost 2000000
>         member: wlan1 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
>                 ifmaxaddr 0 port 11 priority 128 path cost 33333
>
> msk0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST>
> metric 0 mtu 1500
>         options=c0019<RXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWTSO,LINKSTATE>
>         ether 00:1e:8c:0a:50:e2
>         inet6 fe80::21e:8cff:fe0a:50e2%msk0 prefixlen 64 scopeid 0x2
>         nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>         media: Ethernet autoselect (1000baseT <full-duplex>)
>         status: active
>
> em0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric
> 0 mtu 1500
>         options=2098<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
>         ether 00:0e:0c:7f:cf:02
>         inet6 fe80::20e:cff:fe7f:cf02%em0 prefixlen 64 scopeid 0x1
>         nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>         media: Ethernet autoselect (1000baseT <full-duplex>)
>         status: active
>
> In rc.conf the bridge is created with:
>
> ifconfig_bridge0="inet 10.0.0.1 netmask 255.255.255.0 addm wlan1 addm
> em0 addm msk0 up"

I create the bridge the same way as you.

>
> thanks
> -kim



-- 
Monthadar Al Jaberi