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VPN IPSEC on Red Hat 5

I'd like to connect to remote sites. It has to be transparent for users
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1 Solution

Here's a deployment guide for IPSec and VPN's in Red Hat: http://www.centos.org/docs/5/html/Deployment_Guide-en-US/ch-vpn.html

IPsec Installation: http://www.centos.org/docs/5/html/5.1/Deployment_Guide/s1-ipsec-generalconf.html

Regards, Tobias
nociSoftware EngineerCommented:
In stead of racoon you can also look into the openswan ipsec tools.
Jey1980Author Commented:
Generally fine, but does it work with other IPsecs
nociSoftware EngineerCommented:
yes, IPSEC is a combination of protocols...

ESP / AH = for exchange of encrypted messages (IPv4).
IKE (UDP/500 & UDP/4500) for  dynamic key exchange. This generates a session key for the ESP exchange.

Many implementations do exist and are required to at least implement a minimal set of compatible items.
Also the standards define how to act on unknown en special options. So they should all work together.

Freeswan was one of the first implementations that could negotiate with almost all other implementations. Openswan is a continuation of the Freeswan effort.

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