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Routing and Remote Access ports for Router NAT Translation
- Thread starter mcr123
- Start date
ChicagoTechNet
MIS
Assuming you want to use VPN, quoted from
Which ports need to be opened for running VPN
A: PPTP VPN uses TCP Port 1723, IP Protocol 47 (GRE); L2TP: UDP Port 1701; IPSec: Pass protocol 50 and 51. Note: 47 is a protocol number and not TCP port. The protocol name is GRE. It'll make a big difference when configuring your firewall or router.
Robert Lin, MS-MVP, MCSE & CNE
Windows, Network and How to at
Which ports need to be opened for running VPN
A: PPTP VPN uses TCP Port 1723, IP Protocol 47 (GRE); L2TP: UDP Port 1701; IPSec: Pass protocol 50 and 51. Note: 47 is a protocol number and not TCP port. The protocol name is GRE. It'll make a big difference when configuring your firewall or router.
Robert Lin, MS-MVP, MCSE & CNE
Windows, Network and How to at
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