Chapter 8 Security
P-663HN-51 User’s Guide
95
8.3
Incoming IP Filtering
By default, the ZyXEL Device blocks traffic from the Internet from going to the
LAN. Use incoming IP filtering to allow certain traffic to come in from the Internet
to the LAN. For example, you could allow access to a web server on your LAN to
let people access a website that it is hosting. Click
Advanced Setup > Security
> IP Filtering > Incoming
to open the following screen. This screen lists the
currently configured filtering entries.
Figure 44
Advanced Setup > Security > IP Filtering > Incoming
The following table describes the labels in this menu.
Destination
Port
Type the destination port for traffic to which this entry applies.
Save/Apply
Click this button to save the changes and have the ZyXEL Device start
using them.
Table 29
Advanced Setup > Security > IP Filtering > Outgoing > Add
LABEL
DESCRIPTION
Table 30
Advanced Setup > Security > IP Filtering > Incoming
LABEL
DESCRIPTION
Filter
Name
This is the name configured to identify the filter entry.
VPI/VCI
This is the WAN connection’s Virtual Path Identifier, and Virtual Channel
Identifier.
Protocol
This is the type of packets to which this entry applies.
Source
Address /
Mask
This is the IP address and subnet mask of a computer (on the Internet) to
which this entry applies.
Source
Port
This is the source port for traffic (from the Internet) to which this entry
applies.
Dest.
Address /
Mask
This is the IP address and subnet mask of a LAN computer to which this
entry allows traffic from the Internet.
Dest. Port
This is the destination port for traffic to which this entry applies.
Remove
To remove a rule, select its
Remove
check box and click the
Remove
button.
19216811.live