Your netmask is probably causing problems. Try 255.0.0.0.
Omachonu Ogali
Intranova Networking Group
On Thu, 6 Jan 2000, John Ioannidis wrote:
> Here is the setup:
>
> Hosts alice and bob, running 3.4-STABLE, xl interfaces.
>
> on alice:
> # ifconfig xl1 10.1.1.1 up netmask 255.255.255.255
> # netstat -r -n
> ...
> 10.1.1.1/32 link#2 UC 0 0 xl1
> ...
> # ping 10.1.1.1
> (yes, it pings fine)
> # netstat -r -n
> ...
> 10.1.1.1 0:10:4b:63:80:33 UHLW 0 4 lo0 =>
> 10.1.1.1/32 link#2 UC 0 0 xl1
> ...
>
> So far, everything is fine.
>
> Do the same on bob;
>
> # ifconfig xl1 10.1.1.2 up netmask 255.255.255.255
>
> bob can also ping himself.
>
> Now, how to ping bob from alice?
> The obvious thing would be to say
>
> # route add -interface 10.1.1.2 10.1.1.1
>
> which creates the following routing entry:
>
> 10.1.1.2 10.1.1.1 UHS 0 60 xl1
>
> which of course doesn't work.
>
> So, what's the right way to do this? (No, I can't have a shorter
> subnet mask and put both interfaces on the same subnet! Needless to
> say, what I've described is the simplified problem). There has to be
> a way to tell the routing code "this address may not look like it's on
> any of your subnets, but the way to reach it is to ARP for it through
> interface xl1". There was definitely a way of doing this back in the
> SunOS 4 (and before) days.
>
> Help?
>
> /ji
>
> --
> John Ioannidis * Secure Systems Research Department * AT&T Labs - Research
> OUR COMMON BOND: Respect for Individuals * Dedication to Helping Customers
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