4-Port ADSL Router User Manual

Configuring IP Filters and Blocked Protocols
138
LAN computers have access to the ADSL Barricade's
Internet connection.
- The term DMZ (de-militarized zone), in Internet networking
terms, refers to computers that are available for both
public and in-network accesses (such as a company's
public Web server). Packets received on a DMZ interface
- whether from a LAN or an external source - are subject
to a set of protections that is in between Public and
Private interfaces in terms of restrictiveness. The global
setting for DMZ-type interfaces may be set to [Deny] so
that all attempts to access these servers are denied by
default; the administrator may then configure IP filter
rules to allow accesses of certain types.
Creating IP Filter Rules
To create an IP filter rule, you set various criteria that must be
met in order for the rule to be invoked. Use these instructions
to add a new IP filter rule, and refer to the examples on page
145 for assistance:
1.
On the [IP Filter Configuration] page, click [Add]. The [IP Filter