| All Categories |
Primers
VPN, Firewall, Security ... |
Guides
HowTo, Choosing a VPN ... |
Reference
Articles, FAQs, Whitepapers ... |
Standards
Architectures, Protocols ... |
Downloads
VPN, Firewall, Security ... |
Products & Services
Hardware, Software, Services |
| Organizations |
Business
Market Research, Law ... |
| Forums |
News
Archive, Events, Newsletters ... |
|
|
| |
| VPN labs is an open community for researching, testing, reviewing, and discussing Virtual Private Networks. Get trusted, unbiased advice on just about everything related to VPN. For more detail check: How to use this site. VPN Labs - VIRTUAL PRIVATE NETWORKS - Free VPN Software and Virtual Private Network News. |
|
|
|
|
echong
Member since:
2004-07-06 01:20:59 |  posted: 2004-07-06 01:27:08
VPN ports
----------
Does anyone know which
ports does VPN use? | suprasonic
Member since:
2004-07-16 02:35:43 |  posted: 2004-07-16 02:42:43
IPsec or PPTP?
----------
Hi,
depending on
what kind of VPN you are
trying, different ports
are necessary.
Do
you try an IPSec or PPtP
VPN?
rgds
timm | shantanukr
Member since:
2004-08-06 21:38:10 | posted: 2004-08-06 21:50:11
All Ports Required
----------
The ports that need to be
opened For different type
are
For IPSec
UDP 500
ESP 50,
AH 51,
UDP 4500
TCP 10,000
UDP
10,000
ESP
(Encapsulating Security
Payload) is not port 50,
but protocol 50
AH
(Authentication Header)
is not port 51, but
protocol 51
UDP 500
ISAKMP (Internet Security
Association Key
Management Protocol)
All IKE Clients and
LAN-to-LAN IKE tunnels
require UDP Port 500 and
their
respective
protocol to establish a
tunnel.
ISAKMP is
a protocol framework that
defines the mechanics of
implementing a key
exchange protocol and
negotiation of a security
policy. ISAKMP is defined
in the
Internet
Security Association and
Key Management Protocol
(ISAKMP).
This is
in reference to RFC 2408
http://www.faqs.org/r
fcs/rfc2408.html
Here is a Interesting
URL to read about ports
for IPSec
http://www.cisco.com/
univercd/cc/td/doc/produc
t/software/ios113ed/113t/
113t_3/ipsec.htm
For PPTP
GRE
47
TCP 1723
TCP
139
UDP
Netbios-NS
UDP
Netbios-DGM
PPTP
"This protocol uses a
Transmission Control
Protocol (TCP) connection
that uses port 1723 and
an
extension of
Generic Routing
Encapsulation (GRE)
(protocol 47) to carry
the actual data (PPP
frame).
For
L2TP
L2TP 115
TCP 1701
UDP
1701
Thanks & Regards
Shantanu
Kumar
Cisco Systems
|
|
