Forum Discussion
URL rewrite through iRule
- Nov 11, 2013
Hi Sunnyman,
This will work;
if { [IP::addr [IP::client_addr] equals 1.1.1.1] || [IP::addr [IP::client_addr] equals 1.1.1.2} { SNAT with 1.1.1.100 snatpool VM_SNAT_POOL_1_1_1_100 } elseif { [IP::addr [IP::client_addr] equals 1.1.1.11] || [IP::addr [IP::client_addr] equals 1.1.1.12} { SNAT with 1.1.1.100 snatpool VM_SNAT_POOL_1_1_1_200 }
But that's not a very scalable way of doing it if your list is going to grow. If it's going to grow then use an address datagroup, with values snatpool names, which you can use like this
snatpool [class match -value [IP::remote_addr] equals dg_sunnyman_snatpools]
or more correctly;
set snatpool [class match -value [IP::remote_addr] equals dg_sunnyman_snatpools] if {$snatpool ne "") { snatpool $snatpool }
It will work in either CLIENT_ACCEPTED or HTTP_REQUEST, however CLIENT_ACCEPTED would be most efficient as you only make the decision once per-TCP connection.
I can't give you a definite answer on the other question, but one approach would be to use Automap in the configuration and then to use the snatpool statement. Or just leave it blank in the config and rely on the snatpool in the iRule.
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