[comp.dcom.sys.cisco] Talking to cisco routers with Unix machines

jkp@cs.HUT.FI (Jyrki Kuoppala) (08/19/90)

In article <9008142108.AA03724@jade.berkeley.edu> of mail.sun-nets, 42-5360)CLIFF%edu (CLIFF <(Cliff Frost {415})) writes:

>Has anyone had any experience using SLIP and/or PPP from a Sun
>(a 3/50 or SPARCstation) at 56 or 64Kbits/sec?  I'm interested
>in using one of the serial ports to do this.

To extend, has anyone written software to talk to Cisco routers at 64
kbits/sec ?  I understand that Cisco's support SLIP, but can that be
run at 64 kbit/s ?

I suppose the protocol Cisco routers use to talk to each other is not
any standard protocol but Cisco's own.  Are the protocol specs
available ?  If not, would Cisco object to someone reverse-engineering
the protocol ?

A local PTT here offers a service to connect company LANs together
with Cisco routers; if a general-purpose Unix machine could talk the
Cisco protocol and route the traffic (perhaps also DECNET traffic) one
could save the money needed to buy the Cisco router.  Well, perhaps I
shouldn't have said that because I suppose it's not in the best
interests of Cisco ;-)

//Jyrki

henry@zoo.toronto.edu (Henry Spencer) (08/19/90)

In article <1990Aug18.225126.3678@santra.uucp> jkp@cs.HUT.FI (Jyrki Kuoppala) writes:
>To extend, has anyone written software to talk to Cisco routers at 64
>kbits/sec ?  I understand that Cisco's support SLIP, but can that be
>run at 64 kbit/s ?

There is no reason why you couldn't run SLIP at FDDI bit rates, should
you really want to. :-)  I'd guess that 64kbaud is synchronous rather
than async, in which case SLIP's applicability is a bit more dubious,
but the idea is not impossible even so.

>I suppose the protocol Cisco routers use to talk to each other is not
>any standard protocol but Cisco's own...

In the long run they will probably use PPP, I would think.  What they
use *now* is a different question; it may well be proprietary.
-- 
It is not possible to both understand  | Henry Spencer at U of Toronto Zoology
and appreciate Intel CPUs. -D.Wolfskill|  henry@zoo.toronto.edu   utzoo!henry