Setting Up The Nokia Ip40 Security Platform Security Policy; Setting The Firewall Security Level - Nokia IP40 User Manual

7
Setting Up the Nokia IP40 Security
Platform Security Policy
This chapter describes how to set up the Nokia IP40 security policy. It includes the following
topics:

Setting the Firewall Security Level

Configuring Virtual Servers
Creating Firewall Rules
Allow and Block Rules
Deleting Rules
Defining an Exposed Host
Setting the Firewall Security Level
You can define the firewall security level on the Firewall page. This level can be adjusted to
three states:
Low-level security—enforces basic control on incoming connections, while permitting all
outgoing connections.
At this level, all inbound traffic is blocked to the external IP address except for ICMP
echoes. All outbound connections are allowed.
Medium -level security—enforces strict control on all incoming connections, while
permitting safe outgoing connections.
When this level is selected, all inbound traffic is blocked. All outbound traffic is allowed to
the Internet except for windows file sharing.
High level- security—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, news groups, Telnet, DNS,
IPSEC IKE, and VPN traffic.
The default security level is medium. For information on customizing your security policy, see
"Customizing Nokia IP40 Security Platform Security Policy"
Nokia IP40 Security Platform User's Guide v1.1
on page 98.
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