Forum Discussion

jnowlin_44976's avatar
jnowlin_44976
Icon for Nimbostratus rankNimbostratus
Nov 09, 2011

redirect to specific pool member based on subnet

i am looking for a way to redirect clients based on their subnet to specific pool members. and then if they do not match a subnet speficified they are load balanced between the pool members. i have seen some examples close to this but mainly dealing with redirecting clients to seperate pools. preferably if i could have a groups of subnets directed to a single nodes that would be ideal and fall back to load balance if subnet is not listed. any help would be appreciated thanks

 

 

 

bigip ltm version 9.4.5 build 1086.1

 

application delivery
dev
devops
iRules

1 Reply

Sort By
  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Nov 09, 2011
    this is on 10.2.3 but i think it could be applicable for 9.4.x. please feel free to revise. 

    [root@ve1023:Active] config  b virtual bar list
virtual bar {
   snat automap
   destination 172.28.65.152:http
   ip protocol tcp
   rules myrule
}
[root@ve1023:Active] config  b rule myrule list
rule myrule {
   when CLIENT_ACCEPTED {
        if {[IP::addr [IP::client_addr] equals 192.168.206.0/24]} {
                pool foo member 200.200.200.101 80
        } else {
                pool foo member 200.200.200.102 80
        }
}

when SERVER_CONNECTED {
        log local0. "[IP::client_addr]:[TCP::client_port] -> [IP::remote_addr]:[TCP::remote_port]"
}
}
[root@ve1023:Active] config  b pool foo list
pool foo {
   members {
      200.200.200.101:http {}
      200.200.200.102:http {}
   }
}

[root@ve1023:Active] config  curl -I http://172.28.65.152/
HTTP/1.1 200 OK
Date: Wed, 09 Nov 2011 16:46:10 GMT
Server: Apache/2.2.3 (CentOS)
Last-Modified: Tue, 08 Nov 2011 12:26:29 GMT
ETag: "4183f1-30-47e02740"
Accept-Ranges: bytes
Content-Length: 48
Connection: close
Content-Type: text/html; charset=UTF-8

[root@ve1023:Active] config  tail -f /var/log/ltm
Nov  9 08:45:59 local/tmm info tmm[4766]: Rule myrule : 172.28.65.150:54072 -> 200.200.200.102:80