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Forum Discussion

Ken_B_50116's avatar
Ken_B_50116
Icon for Cirrostratus rankCirrostratus
Jan 15, 2016

iRule to match IP subnet in a routing domain

I need an iRule that matches a network subnet that is also a routing domain. In human terms, I need to match this: 10.15.115.0%1/24 Currently I am using this code and it works, but I want to be m...
application delivery
iRules
Kai_Wilke's avatar
Kai_Wilke
Icon for MVP rankMVP
Jan 15, 2016

Hi Ken,

you may try this syntax...

 

if { [IP::addr [getfield [IP::client_addr] "%" 1] equals 10.15.115.0/24 ] } then {
    match    
} else {
    no match    
}

 

Note1: The [class] command have to be used in combination with datagroups only.

Note2: Both the [IP::addr] and [class] commands requiring to strip the route domain to work.

Note3: Your current code is performance wise the best choice for /8, /16 or /24 subnets.

Note4: Coding on a iPhone doesnt make fun at all. So please bear with me if the code has some syntax errors... 😉

Cheers, Kai