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Forum Discussion

jaskel_106221's avatar
jaskel_106221
Icon for Nimbostratus rankNimbostratus
Aug 27, 2007

Header insertion (newbie alert)

Hey there,     So, I'm really new to iRules, and I question about a HTTP::header insert     Basically, I am looking to 'replace' the value of a custom(?) header if it exists in the current...
application delivery
dev
devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Aug 28, 2007
Otherwise, you can use '[HTTP::header replace "Client-IP" [IP::client_addr]' (Click here), to replace the header with the new value if the header is set already or insert if it's not present already. If you wanted to be doubly sure that no header exists already, you could use this to remove all instances and then insert a new header:


when HTTP_REQUEST {
   while {[HTTP::header exists "Client-IP"]} {
      HTTP::header remove "Client-IP"
   }
   HTTP::header insert "Client-IP" [IP::client_addr]
}

Aaron