Subject: Re: routing
To: Dustin Sallings <>
From: Bill Studenmund <>
List: current-users
Date: 09/08/1997 18:02:28
On Mon, 8 Sep 1997, Dustin Sallings wrote:

> On Mon, 8 Sep 1997, Peter Seebach wrote:
> # >The route command accepts a flag "-interface", where instead of
> # >specifying a remote gateway to the destination, you specify the local
> # >address of an interface which will be used to transmit to the directly
> # >reachable destination.
> # 
> # >Does that already do what you want, or am I missing something?

Has this changed recently? I just checked the man pages from a -current
system from early June (the June i386 1.2G snapshot), and it mentions (in
passing) an -ifp and an -ifa option to achieve what everyone's talking

Assuming I understand the subject. :-)

> # Not if you have several interfaces with the same IP address, which is a
> # fairly common approach to PPP; i.e., le0 would be, ppp0
> # would be<->, etc etc. 
> 	I'm confused.  Why would this change just because you have more
> than one interface with the same IP address?  If you tell it to go out a
> particular interface, which the -interface flag is documented to do, then
> who cares what the address of that function is, as long as the packet goes
> out it?

I think the earlier discussion of how the interface command worked was you
gave it the IP address for an interface. If you have multiple interfaces
w/ the same address, you've not achieved your goal of sending the route
via a particular interface.

Take care,