09-06-2007 11:52 AM - edited 02-21-2020 01:40 AM
Hi, I am a real rookie to cisco, so please forgive me if I say anything silly. I wanted to know wich ports do I have to free, to make a VPN with a VPN CLient 4.7.00.0533. I tryed with 4500 UDP 62515 or 62514 UDP 10000 TCP, but nothing works. Could you help me please? Thank you very much.
09-06-2007 12:41 PM
esp protocol 50
udp 500
udp 4500
That should do the trick.
09-06-2007 12:59 PM
I am sorry, but what do you mean by "esp Protocol 50"
Thanks
11-21-2008 02:03 PM
Networking is composed of layers; usually, this is the OSI model (see http://en.wikipedia.org/wiki/OSI_model for details). IP is one of these layers, and can encapsulates data from the layer above. In the IP header, there is a marker identifying the type of data that is contained within the IP packet - this is just a number, such as 6 for TCP or 17 for UDP. Protocol 50 is one of these - it denotes encapsulating security payload, and is commonly used with VPN applications.
Protocol 50 differs from TCP port 50 in that TCP port 50 is specific to the TCP protocol in the transport layer (layer 4), whereas protocol 50 is specific to the IP protocol in the network layer (layer 3). ICMP is another example of a protocol number (it is number 1) - but ICMP does not use port numbers like protocols such as TCP and UDP do, i.e. not all IP protocols use port numbers.
11-24-2008 12:00 AM
Where should i write these commnands
esp protocol 50
udp 500
UDP 4500
thinks
11-24-2008 05:28 AM
Which firewall device are you using?
Regards
Farrukh
11-24-2008 11:44 AM
Hi, I'm using the pix 515e v6.3
Thinks.
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