Linux-Hams archive - December 1996: Re: ip over ax.25 arp reliant on ip address on netrom ??

Re: ip over ax.25 arp reliant on ip address on netrom ??

Jonathan Naylor (qgww@aql.fr)
Sun, 8 Dec 1996 13:24:53 +0000 (GMT)


On Sun, 8 Dec 1996, Rob Mayfield wrote:
> Howdy all,

Yo !

> I Recently had a problem here that caused hardware addresses for other
> stations to always be resolved as the interface hardware address I was
> talking to them on, but only while running netrom. If netrom was not
> attached, hardware addresses were resolved fine. I don't, and don't
> want to,
> run ip _over_ netrom, so why would I configure an ip address on the
> netrom interface (nr0) ? Well it seems if I don't, It causes the
> aforementioned arp problem.
>
> Anyone else seen this ??

Yes its an interesting problem. The simple advice is to set an IP address
on such interfaces to something, make it the same address as your AX.25
ports perhaps ? I wonder if someone (Alan ?) can explain why this
happens. It probably deserves to appear in the AX25-HOWTO as a "gotcha"
type problem.

> 73 .. Rob
>
> --
> Rob Mayfield, NSIS / Digital Equipment Corporation (Aust) P/L
> lerusqs@b30.netlin.pl upfkc@mx.dy.fi
> bjyaxlip.zdcuwepjtl@fhcrc.org po box 73 oaklands park sa 5046

Jonathan

--
+----------------------------------+---------------------------------------+
| e-mail: ykryz.zjfvpeieg@makitorppayhtiot.fi        | Telephone: +44 (0) 973 695261         |
+----------------------------------+---------------------------------------+
|           Author of Linux kernel AX.25, NET/ROM and Rose.                |
+--------------------------------------------------------------------------+