configuring bridge to route L2 packets from one interface to the other

[Sinha, Prokash]

Finally able to coax it to get laggs bound to the bridge. Let me see thru kgdb ...


From: <Sinha>, Prokash Sinha <psinha at panasas.com<mailto:psinha at panasas.com>>
Date: Thursday, February 5, 2015 1:09 PM
To: "freebsd-net at freebsd.org<mailto:freebsd-net at freebsd.org>" <freebsd-net at freebsd.org<mailto:freebsd-net at freebsd.org>>
Subject: Re: configuring bridge to route L2 packets from one interface to the other

I got the bridge device created ( kernel config needed to be changed ).

But don't know how the add works -

Is it because of the lagg ???

018780222f020d# ifconfig bridge0 addm bge0 addm bge1
ifconfig: BRDGADD bge0: Invalid argument

Thanks,
-p

From: <Sinha>, Prokash Sinha <psinha at panasas.com<mailto:psinha at panasas.com>>
Date: Thursday, February 5, 2015 11:32 AM
To: "freebsd-net at freebsd.org<mailto:freebsd-net at freebsd.org>" <freebsd-net at freebsd.org<mailto:freebsd-net at freebsd.org>>
Subject: configuring bridge to route L2 packets from one interface to the other

Hi All,

I'm trying to come up with a L2 forwarding from one interface to the other. Is creating a bridge a good idea ?

The context:

I will have ether_frame coming from client to one NIC port BCM ( the driver is bge), it will come to an interface, and want to forward to the other interface.

So what is and how should I get this, so it work like a small scale bridge/switch ?  If I get all traffic coming in ifp 0, and forward to ifp 1 then I can put a custom filter for the packets of interest to be forwarded.


So if I can configure using -
018780222f020b# ifconfig bridge create
ifconfig: SIOCIFCREATE2: Invalid argument

Not sure what the problem could be in my other configuration. It some have static lagg -
018780222f020b# ifconfig -a
bge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=49b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO>
ether 00:09:03:01:87:80
media: Ethernet autoselect (1000baseTX <full-duplex>)
status: active
lagg: laggdev lagg0
bge1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=49b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO>
ether 00:09:03:01:87:81
media: Ethernet autoselect (1000baseTX <full-duplex>)
status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
inet6 ::1 prefixlen 128
inet 127.0.0.1 netmask 0xff000000
lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=49b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO>
ether 00:09:03:01:87:80
inet 10.17.26.11 netmask 0xffffff00 broadcast 10.17.26.255
media: Ethernet autoselect
status: active
laggproto failover
laggport: bge0 flags=5<MASTER,ACTIVE>
lagg1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 00:09:03:01:87:81
media: Ethernet autoselect
status: no carrier
laggproto failover

Thanks in Advance,
-prokash