The value of the object tIPFilterParamsExtTTLVal1 specifies the Time-To-Live value1 to be compared to the value of the Time-To-Live field of an IP packet header that has hit this filter's entry. The way how the value of this object is used depends on the value of the object tIPFilterParamsExtTTLOper. The value of this object can be set to a non-default value only if the value of the object tIPFilterParamsExtTTLOper is other than 'none (0)'. If the value of tIPFilterParamsExtTTLOper is 'range (2)' then the value of this object must be less than the value of tIPFilterParamsExtTTLVal2. If the value of tIPFilterParamsExtTTLOper is 'lt (3)' then the value of this object can be set in range 1..255. If the value of tIPFilterParamsExtTTLOper is 'gt (4)' then the value of this object can be set in range 0..254. If both the values of the objects tIPFilterParamsExtTTLOper and tIPFilterParamsExtTTLVal1 need to be changed then it must be done in the same SET SNMP request. Note that the value of this object is silently cleared by the system if tIPFilterParamsAction is set to a value other than 'drop (1)' or if tIPFilterParamsExtTTLOper is set to 'none (0)' or if tIPFilterParamsExtPktLenOper is set to a value other than 'none (0)'.