[HECnet] Config Details Required

[Tim Sneddon]

On 8/09/2013 11:18 PM, Mark Darvill wrote:
On 08/09/2013 15:45, Robert Jarratt wrote:

-----Original Message-----
From: owner-hecnet at Update.UU.SE [mailto:owner-
hecnet at Update.UU.SE] On Behalf Of Johnny Billquist
Sent: 08 September 2013 14:52
To: hecnet at Update.UU.SE
Subject: Re: [HECnet] Config Details Required

On 2013-09-08 15:48, Mark Darvill wrote:
HI,

I will be bringing up a new decnet area on hecnet (Area 22) in the
near future.

Can I please have info on the peering for IP and any other config
details that may help. I will be using a DECbrouter 90 (Cisco) V11.1.
So, anyone know if the DECrouter will do, and who would be willing to act
as
a peer?

      Johnny

-- 
Johnny Billquist                                   || "I'm on a bus
                                                                      ||   on a psychedelic trip
email: bqt at softjar.se                         ||   Reading murder books
pdp is alive!                                         ||   tryin' to stay hip" - B. Idol

Hmmm... Didn't know much about DECbrouter until I looked it up following
these emails. If I have it right
(http://manx.classiccmp.org/collections/mds-199909/cd2/network/decbroma.pdf) 
all DECbrouters have only one Ethernet interface and a one or more
(depending on model) WAN connections using synchronous serial lines. I am
wondering how this could be used on HECnet. I don't think anyone offers any
synchronous serial way into HECnet, or am I wrong?

That leaves the one Ethernet interface. To be able to use that would need
the bridge (or my user mode router, or some other hardware router) to be on
the same LAN. But at that point there wouldn't be a lot of point having the
DECbrouter as it would not have anything to route.

Have I missed something? Is the DECbrouter 90 (Cisco) a different beast?

Regards

Rob

I should be able to set up the DECbrouter 90 as a one armed router behind my main internet Router which is a Cisco 1800. All I need it for is to encapsulate DECnet and then forward it to a peer via my internet connected router. It won't be the highest performance but it will get the Area up, I can then change it at a later date if required.

BTW, my Cisco 1800 does not support DECnet or GRE so this is not an option.

Does anyone have any peering info or the config used either on a Cisco or DECbrouter.

Hi Mark,

I have a Cisco 857 which provides my connection to the 'net.   I have the following NAT rules on my Cisco 867 (gatekeeper) to pass GRE/IP packets through to my DECbrouter 90T2:

      interface Vlan1
              ip address 172.17.111.254 255.255.255.0
              ip nat inside

      interface Dialer0
              ip nat outside

      ip nat inside source static tcp 172.17.111.251 1723 interface Dialer0 1723

Then on my DECbrouter 90T2 (a12rtr) I just set up the tunnels, like so:

      interface Tunnel52
              description HECnet tunnel for ...
              no ip address
              decnet cost 20
              tunnel source Ethernet0
              tunnel destination ....

However, as Dave pointed out (and I said earlier) when Brian catches up with the list he can add you to the mesh and you will receive all the configuration details from him.

I am also likely able to track down a version of the Cisco 1800 IOS that can do DECnet and GRE/IP (if you're interested).

Regards, Tim.