Broadcast Over PPP

R P Herrold <[email protected]> Wed, 3 Nov 2010 16:24:44 -0400 (EDT)
Newsgroups gmane.linux.redhat.ppp
Message-ID <[email protected]>
On Wed, 3 Nov 2010, James W. McKelvey wrote:

> So my question is, why isn't broadcast traffic passed in the natural manner, 
> and how can I make it work?

Looking at this ...

> 9: ppp0: <POINTOPOINT,MULTICAST,NOARP,UP> mtu 1500 qdisc pfifo_fast qlen 3
>    link/ppp
>    inet 169.254.253.1 peer 169.254.253.2/24 brd 169.254.253.255 scope global 
> ppp0

Why are you using the reserved block for Link-local addresses 
for IPv4 ? Request for Comments 3927 imposes some unaccustomed 
additional requirements there

How did you get:
 	peer 169.254.253.2/24

a /24 mask is most unusual on a point to point link -- not 
sure it is expressly prohibited by RFC, but ...I expected a 
different netmask as well

from a local connection

ppp0      Link encap:Point-to-Point Protocol
           inet addr:72.251.39.35  P-t-P:64.136.167.162  Mask:255.255.255.255
           UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1

here the proxyarp option as off in my configs (as I do not 
want or need such, in the particular connection in question)

- Russ herrold