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RE: Asymmetric routing with tunnel.

  • From: Geoff Huston
  • Date: Mon Mar 30 18:15:59 1998

I can provide details ..

We are using a 45M satellite circuit operating from Teleglobe
to Telstra. The circuit is configured as a unidirectional
circuit with no direct return path. 

We use BGP as the link keepalive protocol as well as the
route peering protocol, using the two lookpack addresses
as the peering points for the BGP TCP session. The circuit
is now operating in production mode successfully.

A description of the initial test rig including template
router configs can be found at 

The work was undertaken with the support of Telstra, Teleglobe
and Intelsat.


  Geoff Huston

>From [email protected]  Tue Mar 31 06:59:37 1998
>From: "Bill St. Arnaud" <[email protected]>
>To: <[email protected]>, "Jaeho Yang" <[email protected]>
>Cc: "Yves Poppe" <[email protected]>
>Subject: RE: Asymmetric routing with tunnel.
>Date: Mon, 30 Mar 1998 15:20:46 -0500
>X-Priority: 3 (Normal)
>X-MSMail-Priority: Normal
>Importance: Normal
>X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4
>Teleglobe is providing a similar type of service to Telstra's Internet
>Service in Australia.
>Contact Bob Collett at Teleglobe for more details
>Bill St Arnaud
>Director Network Projects
>[email protected]
>> -----Original Message-----
>> From: [email protected] [mailto:[email protected]]On Behalf Of
>> Jaeho Yang
>> Sent: Sunday, March 29, 1998 2:27 AM
>> To: [email protected]
>> Subject: Asymmetric routing with tunnel.
>> We have terrestrial link between korea and us. But we have many down
>> traffic (US -> Korea),
>> we consider satellite for getting more incoming bandwidth. I contacted
>> serveral satellite service
>> providers, but the major concern is integration with existing
>> terrestrial link.
>> Our connection point is located in PAIX(Digital IX). But one candidate
>> is located in Mae-east.
>> My idea is transmitting some traffic into Mae-east via making tunnel.
>> The border router sends incoming mail, ftp, and news traffic into VPN
>> box, which is connected
>> with other port of router. The traffic was encapulated by VPN box. VPN
>> box makes a tunnel
>> with one of Mae-east, which has the similar VPN box configured with our
>> one.
>> The router of mae-east sends traffic into the router of Satellite
>> Service provider.
>> The satellite transmit our traffics...
>> I'll verify my idea is feasible, and there are some reference sites..
>> Thanks in advance.
>> --J