This read-only value holds the actual data for a logged trap's variable binding when trpzTraplogVarValueType indicates ipAddress, specifically an IPv4-format address; IPv6 addresses are instead stored in trpzTraplogVarOctetStringVal. An admin reads this column only when the value type confirms it's populated for that row, and knows to check the octet-string column instead for IPv6 data. For example, a trpzTraplogVarIpAddressVal holding a specific wireless client's IPv4 address preserves that client's address as it was reported in the original trap.