Forum Discussion
flefranc_29890
Nimbostratus
Nimbostratushttp redirection to an IP address of a pool member
Hello,
I want to redirect all http traffic to a VIP address to the IP address of a member of a pool.
I begin like this in a i-rule :
when HTTP_REQUEST {
if { [HTTP::uri] equals "/" } {
HTTP::redirect http://Pool}
}
It does'nt work ...I don't now how to write the IP address of the pool member chosen at a moment in a load-balancing way.
Sincerely
hwidjaja_37598Altostratus
You can use pool command, the help is at:
http://devcentral.f5.com/wiki/default.aspx/iRules/pool.html
flefranc_29890Hello,
I have seen it but the IP address change each time because a different member is chosen in the pool then how to re-write the url ?
http://pool[member ]
Sincerely- dennypayne
Employee
Just create another pool with only the member you want in it and use the pool command to select that one.
Denny 
hoolioCirrostratus
If you really want to redirect the client to the selected pool member's IP address, you can use a rule like this (Click here😞when LB_SELECTED { Check if requested URI is / if {[HTTP::uri] eq "/"}{ Send redirect with the selected server's IP address HTTP::redirect "http://[LB::server addr]" } }
Aaron- flefranc_29890I try this :
when HTTP_REQUEST {
if {[IP::addr [LB::server addr] equals "10.64.21.157"]} {
HTTP::redirect http://10.64.21.157 }
}
I have a log error :
TCL error: irule_Autoconf2_Rewrite HTTP_REQUEST - bad IP address format while executing IP::addr [LB::server addr] equals 10.64.21.157 - flefranc_29890when i try this :
when LB_SELECTED {
if {[HTTP::uri] eq "/"}{
HTTP::redirect "http://[LB::server addr]"
}
}
I get line 3: [command is not valid in current event context (LB_SELECTED)] [HTTP::redirect "http://[LB::server addr]" ] - hoolioSorry about that. It looks like HTTP:: commands won't work in LB_SELECTED. Else, you should be able to use LB::select to force a pool member selection and then redirect to the selected IP:
when HTTP_REQUEST { set pool_info [LB::select] log local0. "The LB choice is: $pool_info. Redirecting to http://[getfield $pool_info " " 4]" Redirect to selected pool member's IP address HTTP::redirect "http://[getfield $pool_info " " 4]" }
Aaron
