Re: Static interface routes for IP address on different subnet doesn't send an ARP who-has

[Peter Kieser <peter%kieser.ca@localhost>]

So just to wrap up - this configuration did the trick for my ISP, I 
think the documentation should be updated (at 
http://www.netbsd.org/docs/network/#nonsubnetgateway) this was for my setup:

198.50.219.49 = Failover IP
198.27.66.254 = Dedicated server gateway IP
vioif0 = Ethernet Interface

# ifconfig vioif0 inet 198.50.219.49 netmask 255.255.255.255 broadcast 
198.50.219.49
# route add -net 198.27.66.254/32 -cloning -link -iface vioif0
# route add default -ifa 198.50.219.49 198.27.66.254

So if the documentation were to be updated on the NetBSD site (as I'm 
sure I'm not the only person that ran into this issue) it would be:

# ifconfig fxp0 inet 10.0.0.1
# route add -net 192.168.0.1/32 -cloning -link fxp0 -iface
# route add default -ifa 10.0.0.1 192.168.0.1

Cheers,

-Peter


On 2013-08-22 11:24 AM, Peter Kieser wrote:
> Using -net and -cloning together does the trick:
>
> # route add -net 198.50.219.62/32 -link -cloning -iface vioif0
>
> Destination         Gateway            Flags   Refs       Use 
> Mtu        Interface
> 198.50.219.49       52:54:00:40:aa:16  UHLc       0         8 
> -            lo0 =>
> 198.50.219.49/32    link#1             UC         1         0 
> -            vioif0
> 198.50.219.62       52:54:00:07:a6:f6  UHLc       0         3 
> -            vioif0 =>
> 198.50.219.62/32    link#1             UCS        1         0 
> -            vioif0
>
> -Peter
>
> On 2013-08-22 10:15 AM, David Young wrote:
> > On Thu, Aug 22, 2013 at 10:04:48AM -0700, Peter Kieser wrote:
> > > I tried the route cloning suggestion to see if it would work for the
> > > /32, on NetBSD 6.1:
> > >
> > > # ifconfig vioif0 inet 198.50.219.49 netmask 255.255.255.255
> > > broadcast 198.50.219.49
> > > # route add -host 198.50.219.62 -link -cloning -iface vioif0
> > > add host 198.50.219.62: gateway vioif0
> > What's the routing table in NetBSD look like at each step?
> >
> > Hmm, -host doesn't make sense with -cloning.  Perhaps you will get a
> > different result from 'add -net' instead of 'add -host'?
> >
> > Dave

--
Peter Kieser <peter%kieser.ca@localhost> / 604.338.9294

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