[TriLUG] help setting up Nextel BPL modem under Linux

Aaron S. Joyner aaron at joyner.ws
Fri Jul 9 09:38:11 EDT 2004


Joseph Mack NA3T wrote:

>On Fri, 9 Jul 2004, Joseph Mack NA3T wrote:
>
>  
>
>>On Fri, 9 Jul 2004, Aaron Joyner wrote:
>>
>>    
>>
>>>meeting, and the setup really is quite odd.  It seems that his static
>>>IP gets assigned to the local interface, and a static route to a MAC
>>>address gets assigned to the ethernet card - although I don't quite
>>>know how DHCP is setting that up.
>>>      
>>>
>
>I don't know how to set a route to a MAC address from the command line.
>
>Just tried this (didn't work) to set a route to a MAC address
>
>my_machine:# arp -s IP_of_default_gw MAC_address_of_modem
>
>when I use the IP of the default gw (which is in a different network
>to any IPs on the machine), I get the error message "network is
>unreachable" and the arp table is not updated. If instead I substitute
>an IP in a network that is routable from my machine, the arp table
>is updated.
>
>I'm a bit flummoxed here. Assuming the modem is acting as a bridge
>and the IPs on the other side are in different networks to the IPs
>on your side, you still can't route to them, even if you know the
>MAC address of the bridge?
>
>Joe
>
>  
>
What you want to set is a route with a Next Hop of MAC_ADDR.  That'll 
route all traffic destined for 1.2.3.4 to 00:00:00....

I think.  :)  Let us know how it works out.

Aaron S. Joyner



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