Thread (12 messages) 12 messages, 7 authors, 2002-08-01

Re: Status of AX.25 in 2.5 / 2.6

From: Iain Young - G7III <hidden>
Date: 2002-07-31 17:53:19

Possibly related (same subject, not in this thread)

Hi Tomi,

You Wrote:
Out of curiosity (and without having any strong personal opinion of my
own) why do you think this not the way to go? I know it breaks ARP but I
suppose that could be corrected somehow.
To be honest, it is just network 'purity', and my own personal
preference.

To me, Layer 2 (AX25 in our case) should not dictate the Layer 3 (IP)
routing decisions. Layer 3 routing should be the domain of Layer 3.

Letting Layer 2 make the decision, while in most cases will get you
the shortest path, may not give you the path you actually want
(Again, network purity and my personal opinion)

I like to be able to say things like 44.0/16 should be routed via
g7iii-1, 44.128/16 via dummy0 (black hole), 44.130 via g7iii-2,
and route of last resort, 44/8 via g7iii-3 etc.

(You can probably guess that I deal with networks, DNS, etc etc
for a living :>)

Of course, I do understand that I am probably the odd-ball case here,
and for most AX25 users, the KJD stack behaviour is fine.

Which is of course why I considered modifying the ipax device to
be a module, and only talk to a named layer 2 interface, and load
several modules, so i could route 44.0/16 via ipax0, 44.128/16
via dummy0, 44.130 via ipax1, and the last resort of 44/8 via
ipax2.


All the Best

Iain
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