Chapter 18
Neobit 1012VA-II ADSL Ethernet Router User’s Guide
118
Example 2.
Blocking Telnet accesses to the Neobit 1012VA:
1. Add a new rule for packets incoming on the ppp-0 interface.
2. Specify that the packet must contain the TCP protocol, and
must be destined for port 23, the well-known port number
used for the Telnet protocol.
3. Enable the rule by clicking the radio button at the top of the
page.
4. Click
to create the rule, and commit your
changes.
Figure 49 shows how this rule could be configured:
Figure 49. IP Filter Rule Example 2