RVL200 - SSL VPN and firewall rules
Forgive my ignorance, but I have been immersed in the configuration of this device RVL200 to allow Remoting SSL VPN to a customer site, sight unseen. I have the basics of the VPN set up in config, but now move the firewall rules. We want to block all internal devices to access the Internet, but I don't want to cripple the remote clients that will be borrowed by blocking their return via the SSL VPN traffic. This leads to my questions:
(1) a rule of DENIAL of coverage for all traffic OUTBOUND will prevent the primary function of the VPN (to allow the administration away from machines on the local network)?
(2) if the answer to #1 is 'Yes', what ports/services do I need to open the side LAN?
(3) building # 2, configuring authorized outbound rules apply only for VPN clients, rather than all the hosts on LAN?
(4) as the default INCOMING traffic rule is to REFUSE EVERYTHING, do I have to create a rule to allow the VPN tunnel, or guess that in the configuration of the router?
Here are some other details:
- The LAN behind the RVL200 is also isolated LAN in a manufacturing environment
- All hosts on this network have a static IP address on a single subnet.
- The RVL200 has been configured with a static, public IP on the WAN/INTERNET side.
- DHCP has been disabled on the RVL200
- Authentication to the device will use a local database.
- There is no such thing as no DNS server on the local network
- The device upstream of the RVL200 is a modem using PPPoE DSL, and the device has been configured for this setting.
- Several database of local users accounts were created to facilitate the SSL VPN access.
I worked with other aspects of it for a long time, but limited experience with VPN and the associated firewall rules and zero with this family of aircraft. Any help will be greatly appreciated.
aponikikay, there is no port forwarding necessary to the function of the RVL200 SSL - VPN.
Topic 1. That is not proven. It shouldn't do. The router should automatically make sure that the SSL - VPN router service is functional and accessible.
Re 2. No transfer necessary. In addition, never before TCP/UDP port 47 or 50 for VPN functions. The TCP 1723 port is used for PPTP. UDP 500 is used for ISAKMP. You usually also to transmit TCP/UDP 4500 port for IPSec encapsulation.
Let's not port 47. ERM is an IP protocol that is used for virtual private networks. It is a TCP or UDP protocol. GRE has 47 IP protocol number. It has nothing to do with TCP or UDP port 47. TCP and UDP are completely different protocols of free WILL.
It goes the same for 50: ESP is the payload for IPSec tunnels. ESP is the Protocol IP 50. It has nothing to do with TCP or UDP port 50.
'Transfer' of the GRE is configured with PPTP passthrough option.
'Transfer' of the ESP is configured with IPSec passthrough option.
Tags: Linksys Routers
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