CTEK M4400E SkyRouter - Manual (Page 20)

Part Number 91-601-01
Release 1.00
17
4.3.2 Routing and Forwarding Services
The Routing and Forwarding Services screen provides two separate but related functions. First it allows you to forward
WAN side IP traffic arriving on a specific IP Port to a specific Port at a LAN side address. In addition to this conventional
forwarding feature this screen also allows you to make a Named Service publicly available over the WAN interface. In
Figure 10 below WAN side UDP and TCP traffic arriving on Port 88 is redirected to Port 80 of LAN address
192.168.1.102.
The second function performed by this set up screen to allow named services to be made publicly available to WAN side
users. Referring again to Figure 10 a service named “Ctek SkyRouter Demo – San Pedro, CA” will be advertised or made
publicly available. Security for this advertised service is left up to the specific service. If the Advertising feature is used the
Administrative Login screen will no longer greet incoming WAN users, instead they will be presented with a Services
screen as shown in Figure 11.
Figure 10
Block Inbound IP Traffic From Wireless Network – If set to Yes the SkyRouter’s firewall is configured to block any
inbound originated (but not response) packets from the wireless network (WAN). This firewall is then selectively modified
by the forwarding entries defined through this screen. If this parameter is set to No, the SkyRouter’s firewall is disabled.
Use NAT on all Ethernet traffic to wireless network – For normal operation this parameter should be set to “Yes”. In
some unique situations, you may connect the SkyRouter to a network where you will be given public address to use on
your LAN’s Ethernet segment. In such cases, NAT should be turned off. NAT is currently required for operation on all US
networks such as Sprint, Verizon or Alltel. Typical environments where NAT would be turned off would be private
networks or some types of VPNs and in these cases, the network operator will most likely provide configuration
assistance.
Forward Inbound Port – This table allows WAN side packets addressed for specific IP ports to be routed to a specified
address on the LAN side.
Of Local Address – Used to specify the LAN side address of the routing operation.