IPsec traffic through Linksys home router

Patrick A. Bryan pbryan at ACRUX.NET
Mon Apr 2 22:53:11 EDT 2001


Well, I guess it depends on the VPN solution you are using. Cisco's
concentrators/clients will NAT both IP50 and IP51, via UDP....
-----Original Message-----
From: VPN Mailing List [mailto:VPN at SECURITYFOCUS.COM]On Behalf Of
Christopher Gripp
Sent: Monday, April 02, 2001 5:32 PM
To: VPN at SECURITYFOCUS.COM
Subject: Re: IPsec traffic through Linksys home router


Let's be clear hear.  ESP works fine, NAT breaks AH.  An IPSec VPN could
be either or both.  We have it working with NS5's and the Linksys.

Chris

-----Original Message-----
From: Jon Carnes [mailto:jonc at HAHT.COM]
Sent: Sunday, April 01, 2001 8:40 PM
To: VPN at SECURITYFOCUS.COM
Subject: Re: IPsec traffic through Linksys home router



AFAIK, IPSec does not yet work through a LinkSys router.  They expect to

have it working RSN (real soon now)...

There is a lot of great information on IPSec and NAT firewalls (and why
IPSec can't work through a NAT - but a "broken" version of it can) in
the
archives.  Also feel free to look at www.freeswan.org

Jon Carnes
----- Original Message -----
From: <lk at KANISA.COM>
To: <VPN at SECURITYFOCUS.COM>
Sent: Saturday, March 31, 2001 2:05 PM
Subject: IPsec traffic through Linksys home router


> I just implemented a Nortel vpn at work with IPsec and pptp traffic
enabled.
> Home I am using a Linksys router with my DSL connection and the IPsec
> traffic does not go through, althogh I enabled it on the router. When
I
use
> the dial-up internet connection with a modem, IPsec is working fine.
> How should I make the IPsec traffic work on a NAt-ed home network
> environment?
>
> Thanks,
>
> Nyugati

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