Chapter 13: Advanced Settings
This chapter describes the additional configurable advanced settings for NetDefendOS that are
not already described in the manual. In the Web Interface these settings are found under System
> Advanced Settings.
The settings are divided up into the following categories:
Note: Activating setting changes
After any advanced setting is changed, the new NetDefendOS configuration must be
activated in order for the new value to take effect.
• IP Level Settings, page 849
• TCP Level Settings, page 853
• ICMP Level Settings, page 859
• State Settings, page 860
• Connection Timeout Settings, page 862
• Length Limit Settings, page 864
• Fragmentation Settings, page 867
• Local Fragment Reassembly Settings, page 871
• SSL/TLS Settings, page 872
• Miscellaneous Settings, page 875
13.1. IP Level Settings
Log Checksum Errors
Logs occurrences of IP packets containing erroneous checksums. Normally, this is the result of
the packet being damaged during network transport. All network units, both routers and
workstations, drop IP packets that contain checksum errors. However, it is highly unlikely for an
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