Ethical Hacking

Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package.
Computer Forensics Training at InfoSec Institute

Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors.




Network Security Firewalls
[Top] [All Lists]

Re: tcp port 500

Subject: Re: tcp port 500
Date: Mon, 6 Feb 2006 16:38:19 -0700
Uhh. read the error? it says UDP.

ISAKMP is done over UDP port 500, not TCP.

-Kurt

----- Original Message ----- From: "XAVIER FERNANDEZ CINTORA" <xfernandez@mexis.net>
To: <firewalls@securityfocus.com>
Sent: Friday, February 03, 2006 1:54 PM
Subject: tcp port 500



Hi to all....

I have a problem with watchguard FW´s, i have configured my central FW
with VPN´s LAN to LAN, but suddenly the new VPN´s cannot connect to the
central. In the logs I saw
"deny in eth0 360 udp 20 123 x.x.x.x y.y.y.y 500 500 default"
so I suppose that the 500 TCP port (500/tcp isakmp) is being denied and
the only solution is a hard reset to the central.
Does anyone have the same problem??
Can anybody offer any advice?

Thanks in advance.



<Prev in Thread] Current Thread [Next in Thread>
  • tcp port 500, XAVIER FERNANDEZ CINTORA
    • Re: tcp port 500, Kurt Seifried <=