Mailinglist Archive: opensuse-security (375 mails)

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Re: [suse-security] how to enable ipsec over firewall?
  • From: Martin Köhling <mk@xxxxxxxxxxxxxxxxxx>
  • Date: Tue, 17 Sep 2002 11:13:13 +0200 (CEST)
  • Message-id: <Pine.LNX.4.33.0209171102270.22078-100000@xxxxxxxxxxxxxxxxxx>
On Tue, 17 Sep 2002, GentooRulez wrote:

> [sombody else wrote:]
>As far as I understand, Ip Port 50 and UDP 500 play a special role
>
> Exactly - the communication goes up on port 50 with protocol 50 using udp.

???

Ipsec uses *IP protocol* number 50 (IPv6-Crypt, look at /etc/protocols)
for data echange, and *UDP port* number 500 (isakmp -> /etc/services)
for key exchange.

Please don't complicate matters further by confusing ports and
protocols...

Cheers,
Martin


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