using multiple interfaces for same Network Card

[John-Mark Gurney]

Yasir hussan wrote this message on Wed, Mar 13, 2013 at 00:03 +0500:
> U say u were successfully using vlans by vlandev in  FreeBSD , Can u send
> me exact commands and configuration which u were applying, It will be very
> helpful for me...

This is how I use it on my router...  
These lines are in rc.conf, from a 9.0 box:
ifconfig_npe1="inet 192.168.x.x netmask 255.255.255.0"
vlans_npe1="12 13"
ifconfig_npe1_12="inet 10.y.y.y netmask 255.255.255.0"
ifconfig_npe1_13="inet z.z.z.z netmask 255.255.255.0"
ifconfig_npe1_13_alias0="inet z.z.z.z2 netmask 255.255.255.255"

Replace npe1 w/ the interface you are using..  And obviously replace
the ip's w/ the correct ones...  My internet connection is connected
to vlan 13 on npe1, and I have two ip addressess associated w/ that
interface...

I believe you can do "/etc/rc.d/netif start" if you don't want to
reboot, but I've never done that.. I've just rebooted, since this
is my router and I want to make sure it comes up...

Good luck...

> On Tue, Mar 12, 2013 at 11:39 PM, John-Mark Gurney <jmg at funkthat.com> wrote:
> 
> > Yasir hussan wrote this message on Tue, Mar 12, 2013 at 23:32 +0500:
> > > Yes, i want to use them as vlan interface, Does any one has used
> > *vlandev*,
> > > after seen this
> > >
> > http://www.cyberciti.biz/faq/howto-configure-freebsd-vlans-with-ifconfig-command/i
> > > tried to use it as
> > >
> > > ifconfig vlan11  create 10.10.11.1  255.255.255.0 vlan 11  vlandev arge0
> > > ifconfig vlan12  create 10.10.12.1  255.255.255.0 vlan 12  vlandev arge0
> > > ifconfig vlan13  create 10.10.13.1  255.255.255.0 vlan 13  vlandev arge0
> > > ifconfig vlan14  create 10.10.14.1  255.255.255.0 vlan 14  vlandev arge0
> > >
> > > i was expecting that it will create interfaces which will work under
> > arge0,
> > > and will able to ping from any pc, Does any one have used it, kindly
> > guide
> > > me about it
> >
> > vlans are a way to add different broadcast domains..  You need to have a
> > vlan capable switch/machine connected and properly configured... If you
> > plug in the machine to a normal switch, and the other machine isn't vlan
> > aware not much will happen...
> >
> > Now if you configure your machine to route (net.inet.ip.forwarding) and
> > setup the pc w/ the proper routing tables, you'll be able to ping the
> > machines...
> >
> > If this doesn't help, please talk w/ a local network engineer to help
> > you configure your network properly...
> >
> > I'm succussfully using FreeBSD with both vlans, and aliases (multiple
> > ips on a single interface aka broadcast domain)...
> >
> > > On Tue, Mar 12, 2013 at 5:06 PM, Ian FREISLICH <ianf at clue.co.za> wrote:
> > >
> > > > Yasir hussan wrote:
> > > > > Thanks for notic but all the elebration was for make alias on one
> > > > > interface but i want to have multiple interface, i can no where that
> > > > > some one would have tring to creating new interfaces and using them,
> > > > > or may be i am missing something, just send its solution if have,
> > > > > solution should be for
> > > >
> > > > I still think you're confusing Linux semantics with FreeBSD semantics.
> > > >
> > > > On linux you would have:
> > > > eth0      Link encap:Ethernet  HWaddr 00:1E:C9:53:0B:61
> > > >           inet addr:10.0.0.1  Bcast:10.0.0.255  Mask:255.255.255.0
> > > >           inet6 addr: fe80::21e:c9ff:fe53:b61/64 Scope:Link
> > > >           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
> > > >           RX packets:211328068 errors:0 dropped:0 overruns:0 frame:0
> > > >           TX packets:368394006 errors:0 dropped:0 overruns:0 carrier:0
> > > >           collisions:0 txqueuelen:1000
> > > >           RX bytes:34065846811 (31.7 GiB)  TX bytes:476377525764 (443.6
> > > > GiB)
> > > >           Interrupt:169 Memory:e6000000-e6011100
> > > >
> > > > eth0:1    Link encap:Ethernet  HWaddr 00:1E:C9:53:0B:61
> > > >           inet addr:10.0.1.1  Bcast:10.0.1.255  Mask:255.255.255.0
> > > >           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
> > > >           Interrupt:169 Memory:e6000000-e6011100
> > > >
> > > >
> > > > On FreeBSD you would have:
> > > >
> > > > re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
> > 1500
> > > >
> > > >
> > options=8209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,LINKSTATE>
> > > >         ether 54:04:a6:96:0c:1e
> > > >         inet 10.0.0.1 netmask 0xffffff00 broadcast 10.0.0.255
> > > >         inet 10.0.1.1 netmask 0xffffff00 broadcast 10.0.1.255
> > > >         media: Ethernet autoselect (1000baseT <full-duplex>)
> > > >         status: active
> > > >
> > > > These are both the same thing.  Is there any particular reason that
> > > > you want multiple interfaces?  I can't see a use for it beyond "it's
> > > > what I'm used to seeing" unless they're VLAN interfaces.

-- 
  John-Mark Gurney				Voice: +1 415 225 5579

     "All that I will do, has been done, All that I have, has not."