Chapter 15 Unified Threat Management for FortiOS 5.0
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Custom Application & IPS Signatures
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Custom signature keywords
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IP header keywords
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ip_ttl
ip_ttl
Syntax:
--ip_ttl [< | >] <ttl_int>;
Description:
Check the IP time-to-live value against the specified value. Optionally, you can check for an IP time-to-live greater-than (>) or less-than (<) the specified value with the appropriate symbol.