Subject: routing/pppd?
To: None <macbsd-general@NetBSD.ORG>
From: noud de brouwer <>
List: macbsd-general
Date: 08/23/1995 03:18:14
Hi All,

If i dial into BSD using ppp with proxyarp it creates 2 routes like:
pppclntone.KnoT.        UH          0       36  ppp0
pppclntone.KnoT. 0:0:94:60:71:40    UHLS2       0        0  ae0
Is it ok to get 2 routes like that? Everything works -hmm(flow control)- ok.

But when the peer leaves (with an open enquiary for some packages??),
sometimes a route is left behind like:
pppclntone.KnoT. link#1             UHL         0        2  ae0

The second time someone come's in and starts the link pppd won't accept
that saying:
pppd[8681]: ioctl(SIOCAIFADDR): Address already exists

I'm getting blue fingers in starting macro's like route delete pppclntxxx.

First i thought to do a route change or delete but only superusers can do
that and i can't su someone in a script. Moreover i don't think that's the
way to do it.

So how come there's a route left, shouldend pppd clean that for me? Did i
forgot something?
And, what can i do to solve it or work around it?

the "normal" settings in /etc/netstart won't prevent the route comming back.
Neither does the following settings prevent it, they make it worse.
on the "gateway" (ppp dialout on dedicated line):
on the ppp-server machine:
rarpd_flags=NO on both
and also with:
rarpd_flags="-a" on the ppp-servers

and even this showed up:
Destination      Gateway            Flags     Refs     Use  Interface
193.78.85        (173) beef dead be UC          0        0  ae0

btw: i'm glad to see a "ppp-movement" on the list!