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Home > Archive > General Discussion > June 2003 > Can I just block all ports between 1024 to 65535?
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Can I just block all ports between 1024 to 65535?
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| fishingnet 2003-06-19, 2:40 pm |
| Dear ALL:
For security, I want to block all income TCP and UDP ports from 1024 to 65535, if there are something must use these ports for incoming session?
Thank you! | |
| Boulware5 2003-06-19, 2:55 pm |
| Well the registered ports (1,024 to 49,151) may be assigned to such services as instant messenger, chat, Internet telephones, etc The private ports are not normally assigned to services and are optional. What type of firewall are you using? | |
| fishingnet 2003-06-19, 3:14 pm |
| ISA, Thank you! | |
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| You could depending on what sort of communications you are doing - here are a few of the ports used for secure protocols.
1071 – L2TP (UDP)
1293 – IPSec (TCP & UDP)
1701 - L2F (TCP)
1723 – PPTP (TCP)
3389 – Windows Terminal Services (RDP protocol)
4500 – ISAKMP/IKE (with NAT) |
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