undefined procedure error in iRule

when CLIENT_ACCEPTED {
    if { [IP::addr [IP::remote_addr] equals 172.22.64.0/24] } {
        snat 172.22.64.68
        log local0. "SNATTed of SiteB"
        pool Test_pool
    } elseif { [IP::addr [IP::remote_addr] equals 2.2.2.0/24] } {
        snatpool NAME_OF_SNAT_POOL
        pool Pool_Name
        log local0. "SNATTed of SiteA"
    } else {
        pool Normal
    }
}

There was a closing curly bracket missing at the end (related to the event).

Are you dealing with a large number of client IPs to translate with different SNATs? Perhaps the 'switch' command will be a better choice:

Hi Stephan,

Thank you very much for your reply. Yes I need to use an SNAT Pool for "Elseif" part instead of using single SNAT IP address.

Any example to use switch in this scenario? Really appreciate your help.

Cheers! Darshan

Hi Darshan, I will look for a working example based on switch.

[root@ltmve:Active] config  cat dg_snat_mapping_ip
host 10.100.100.20 := "10.100.100.120",
host 10.100.100.21 := "10.100.100.121",
host 10.100.100.22 := "10.100.100.122",
host 10.100.100.23 := "10.100.100.123",
host 10.100.100.24 := "10.100.100.124",
network 10.100.100.0/24 := "10.100.100.126",

[root@ltmve:Active] config  bigpipe class ext_dg_snat list
class ext_dg_snat {
    type ip
    filename "/config/dg_snat_mapping_ip"
    mode read
    separator ":="
}

when CLIENT_ACCEPTED {
    set entry [class match -value [IP::client_addr] equals ext_dg_snat]
    if { $entry ne "" } {
        snat $entry
    }
    else {
        log local0. "No SNAT for [IP::client_addr]"
    }
}

Thanks,

Thanks a ton Stephan!

Hi Darshan,

when CLIENT_ACCEPTED {
    switch [IP::addr [IP::client_addr] mask 255.255.255.0] {
    10.10.1.0   { snat 10.232.232.1 }
    10.10.2.0   { snat 10.232.232.2 }
    10.10.3.0   { snat 10.232.232.3 }
    default     { snat 10.232.232.4 }
    }
}

Thanks,

Hi Stephan,

Thank you very much for your extensive help. However can you please guide me how can I embed the switch command within elseif? I know its below newbie level. Apologies to embarrass you for such a nominal query.

Thanks again, Darshan

Hi Darshan,

when CLIENT_ACCEPTED {
    if { [IP::addr [IP::remote_addr] equals 10.10.0.0/16] } {
        snat 10.232.10.1
    } elseif { [IP::addr [IP::remote_addr] equals 10.11.0.0/16] } {
        switch [IP::addr [IP::client_addr] mask 255.255.255.0] {
        10.11.1.0   { snat 10.232.11.1 }
        10.11.2.0   { snat 10.232.11.2 }
        10.11.3.0   { snat 10.232.11.3 }
        default     { snat 10.232.11.8 }
        }
    } else {
        snat 10.232.8.8
    }
}

Thanks, Stephan

Thanks Stephan! Thank you very much!

Hey Stephan,

One more thing, the actual requirement is to route the SNATTed traffic to specific pool as well. So I believe I just have to add "pool " command within IF and ELSEIF statements, right?

Please confirm if its not correct.

Cheers! Darshan

Hi Darshan, you are right, it´s just adding the pool selection as an additional command i.e. as follows:

    switch [IP::addr [IP::client_addr] mask 255.255.255.0] {
    10.11.1.0   { 
            snat 10.232.11.1
            pool pool_1
        }
    10.11.2.0   { 
            snat 10.232.11.2
            pool pool_2   
        }
    10.11.3.0   { snat 10.232.11.3 }
    default     { snat 10.232.11.8 }
    }

Thanks, Stephan