Forum Discussion
Rodolphe_Aubin1
Nimbostratus
NimbostratusHow to check if a string parameter can be an IPv4 or an IPv6 or nothing in an iRule ?
How to deal with that question in the best optimized way to code it versus cycles ? "How to check if a string parameter can be an IPv4 or an IPv6 or nothing in an iRule ?" I have already looke...
PeteWhite
Employee
Employeestring matching with ip addresses is a bit wonky but you could simply do this:
if { $string equals "" } {
# Empty string
} elseif { $string contains "." } {
# IPv4
} elseif { $string contains ":" } {
# IPv6
} else {
# error
}