User`s guide

BLACK BOX® CS Installation, Administration, and User’s Guide 199
Network
Note: The packets are matched (using tcp flags and appropriate reject type) with the
REJECT target.
Firewall Configuration Procedures
The following sections describe the procedures for defining packet filtering:
T To Add a Chain
1. Go to Network > Firewall Configuration.
2. Click “Add.”
The “Add Chain” dialog box appears.
3. Enter the name of the chain to be added in the “Name” field and then click
OK.
Note: Spaces are not allowed in the chain name.
The name of the new chain appears in the list.
4. Finish defining the chain by adding one or more rules, as described in "To
Add a Rule"
T To Edit a Chain
Perform this procedure if you want to change the policy for a default chain.
icmp-net-prohibited
ICMP network prohibited alias.
icmp-host-
prohibited
ICMP host prohibited alias.
echo-reply
Echo reply alias.
tcp-reset
TCP RST packet alias.
Table 8-17: Expert > Reject Options Sections
Field Name Definition