User's Manual

Appendix A – Troubleshooting
4Port 2x2 wireless ADSL modem User Manual
52
Now default policy is BLOCK, it means all incoming IP traffic from WAN is
blocked, but some IP traffic can be accepted by setting up filters.
If you are setting up the incoming IP filtering, click the Add button.
Enter the information in the section. Explanations of parameters are
described below. Click the Apply / Save button to add the entry in the
Active Inbound IP Filtering table.
Filters Parameter Description
Filter Name Enter a name for the new filter.
IP Version Ipv4/Ipv6
Protocol Select the transport protocol (Any, TCP/UDP, TCP, UDP or ICMP) that will be used for the filter rule.
Source IP
address[/prefix
length]
Enter the start IP address which you are creating the filter rule.
Source Port (port or
port:port)
The Source Port is the TCP/UDP port on either the LAN or WAN depending on if you are configuring an Outbound or
Inbound Filter rule.