Chapter 10 Firewall

Each field is described in the following table.

Table 32 Security > Firewall > DoS

LABEL

DESCRIPTION

DoS Protection

DoS (Denial of Service) attacks can flood your Internet connection with invalid packets

Blocking

and connection requests, using so much bandwidth and so many resources that Internet

 

access becomes unavailable.

 

Select Enable to enable protection against DoS attacks or Disable to disable it.

 

 

Apply

Click Apply to save the DoS Protection settings.

 

 

Cancel

Click Cancel to restore your previously saved settings.

 

 

10.6 Firewall Technical Reference

This section provides some technical background information about the topics covered in this chapter.

10.6.1 Guidelines For Enhancing Security With Your Firewall

1Change the default password via web configurator.

2Think about access control before you connect to the network in any way.

3Limit who can access your LTE Device.

4Don't enable any local service (such as Telnet or FTP) that you don't use. Any enabled service could present a potential security risk. A determined hacker might be able to find creative ways to misuse the enabled services to access the firewall or the network.

5For local services that are enabled, protect against misuse. Protect by configuring the services to communicate only with specific peers, and protect by configuring rules to block packets for the services at specific interfaces.

6Keep the firewall in a secured (locked) room.

10.6.2Security Considerations

Note: Incorrectly configuring the firewall may block valid access or introduce security risks to the LTE Device and your protected network. Use caution when creating or deleting firewall rules and test your rules after you configure them.

Consider these security ramifications before creating a rule:

1Does this rule stop LAN users from accessing critical resources on the Internet? For example, if IRC is blocked, are there users that require this service?

2Is it possible to modify the rule to be more specific? For example, if IRC is blocked for all users, will a rule that blocks just certain users be more effective?

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LTE6100 User’s Guide