Security Considerations - Huawei B2368 User Manual

LTE CPE B2368
User Guide

10.6.2 Security Considerations

Consider these security ramifications before creating a rule:
Step 1 Does 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?
Step 2 Is 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?
Step 3 Does a rule that allows Internet users access to resources on the LAN create security
vulnerability? For example, if FTP ports (TCP 20, 21) are allowed from the Internet to the
LAN, Internet users may be able to connect to computers with running FTP servers.
Step 4 Does this rule conflict with any existing rules?
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Once these questions have been answered, adding rules is simply a matter of entering the
information into the correct fields in the web configurator screens.
Issue 03 (2019-01-31)
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.
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