[55925] in North American Network Operators' Group

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Re: VoIP over IPsec

daemon@ATHENA.MIT.EDU (Steve Feldman)
Mon Feb 17 14:28:55 2003

Date: Mon, 17 Feb 2003 11:28:25 -0800
From: Steve Feldman <feldman@twincreeks.net>
To: Charles Youse <cyouse@register.com>
Cc: nanog@nanog.org
In-Reply-To: <BCAAA5D64C837641A9EBB93E2A5089480C1379@ex2k01.corp.register.com>
Errors-To: owner-nanog-outgoing@merit.edu


> Does anyone have any experience running VoIP over such tunnels?
> Is there a technical reason why this solution is not feasible?  Are
> Cisco routers not happy doing VoIP/IPsec/GRE in concert?

The company I'm working for uses Shoreline VoIP PBX gear spread out
over maybe a dozen offices of varying sizes.  All are interconnected
through the corporate enterprise net, Cisco routers with IPSEC/GRE tunnels
over the public Internet.  Each office has at least a T1, and we use a
variety of providers.  We have a typical mix of enterprise interoffice
traffic: email, web, file sharing, etc.  There's no QoS configured in
the routers at present.

It all seems to just work fine.

	Steve

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