Erich Titl wrote:
Charles At 06:57 16.07.2004 -0500, Charles Steinkuehler wrote:Erich Titl wrote:Thanks, one more question though, IIRC you can only proxy arp a single address per interface. Do you have single hosts on these interfaces? Because in my case we will have parts of the entire net being fed off the interfaces.Charles interesting approach do you do any mac based filtering?
Not at the moment...filtering is strictly based on IP (and on the interface a system is connected to).
Where did you get that idea?
Probably dreamt it... :-(
The way I understand proxy arp is that the interface which is the proxy replies to arp requests for the corresponding IP.
So I have to enter all addresses of all the other interfaces to each of the interfaces for them to reply to arp requests?
Now here is my problem with this set up. Two of those separate subnets/branches have a radio interface and another disjunct branch of this net connects to either of them (actually it's a train moving back and forth between two stations). The train nets are of the overall net. I have no control on how the addresses have been assigned to the net and don't know if it is subnettable at all.
Simplified ASCII art of network a.b.c.0/24
Station A a.b.c.x - WLAN bridge a.b.c.y ... WLAN Bridge
| on train in station A
| a.b.c.h (possibly more than 1)
| and train net a.b.c.i
|
somewhere here we have to place the box
fiber optics network, general It equipment all part of the network a.b.c.0
|
|
|
Station B a.b.c.n --- WLAN bridge a.b.c.m .....
When the train moves into either station he has to connect to the net to update passenger info read a digitized camera view to the drivers seat e.t.c.
...
ie: you can chop up your networks anyway you want...you just have to build the appropriate routing rules and enable proxy-arp on all appropriate interfaces (eth0-4, above)
OK, I see.... and proxy arp would just be responsible for having a single default route on all machines, is this the general idea?
Erich
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