User guide

Setting the Firewall Security Level
170 Check Point ZoneAlarm User Guide
This
level…
Does this… Further Details
High Enforces strict control on all
incoming and outgoing
connections.
All inbound traffic is blocked.
Restricts all outbound traffic except for the
following: Web traffic (HTTP, HTTPS), email (IMAP,
POP3, SMTP), ftp, newsgroups, Telnet, DNS,
IPSEC IKE and VPN traffic.
Block All Blocks all access between
networks.
All inbound traffic from the Internet and all
outbound traffic to the Internet is blocked.
This does not affect traffic to and from the
gateway itself.
The definitions of firewall security levels provided in this table represent the ZoneAlarm
router’s default security policy.
You can easily override the default security policy, by creating user-defined firewall rules.
For further information, see Using Rules on page 172.
Note: If the security policy is remotely managed, this lever might be disabled.
Note: Security updates downloaded from a Service Center may alter the security
policy and change these definitions.