Modify multiple virtual servers

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1

Hi,

I have an LTM environment with about 30 virtual servers that I’m moving to a new datacenter with a different external IP network. Can I copy the virtual servers in bulk while changing the virtual IP addresses?

Thanks!

2

Hi Aaron,

you could either write a TMSH-TCL script to manipulate those IPs or export/edit/import the configuration using TMSH. But i doubt that writing a TMSH-TCL script would make any sense for a one-time task. So I would recommend to go the export/edit/import route…

Note: The code below outlines a TMSH sequence to clone a single virtual server. But the same method can be used to export/edit/import multiple configuration objects.

itacs@(f5-02)(cfg-sync Standalone)(Active)(/Common)(tmos) list ltm virtual VS_HTTPS_211
ltm virtual VS_HTTPS_211 {
    destination 172.21.17.211%1:https
    ip-protocol tcp
    mask 255.255.255.255
    pool pool_a
    profiles {
        clientssl-insecure-compatible {
            context clientside
        }
        http { }
        oneconnect { }
        serverssl-insecure-compatible {
            context serverside
        }
        tcp-lan-optimized { }
    }
    related-rules {
        Test
    }
    rules {
        iRule_2_Delete
    }
    source 0.0.0.0%1/0
    source-address-translation {
        type automap
    }
    vs-index 12
}
itacs@(f5-02)(cfg-sync Standalone)(Active)(/Common)(tmos) load sys config from-terminal merge
Enter configuration. Press CTRL-D to submit or CTRL-C to cancel.
ltm virtual VS_HTTPS_212 {
    destination 172.21.17.212%1:https
    ip-protocol tcp
    mask 255.255.255.255
    pool pool_a
    profiles {
        clientssl-insecure-compatible {
            context clientside
        }
        http { }
        oneconnect { }
        serverssl-insecure-compatible {
            context serverside
        }
        tcp-lan-optimized { }
    }
    related-rules {
        Test
    }
    rules {
        iRule_2_Delete
    }
    source 0.0.0.0%1/0
    source-address-translation {
        type automap
    }
    vs-index 12
}Loading configuration...
itacs@(f5-02)(cfg-sync Standalone)(Active)(/Common)(tmos) list ltm virtual VS_HTTPS_212
ltm virtual VS_HTTPS_212 {
    destination 172.21.17.212%1:https
    ip-protocol tcp
    mask 255.255.255.255
    pool pool_a
    profiles {
        clientssl-insecure-compatible {
            context clientside
        }
        http { }
        oneconnect { }
        serverssl-insecure-compatible {
            context serverside
        }
        tcp-lan-optimized { }
    }
    related-rules {
        Test
    }
    rules {
        iRule_2_Delete
    }
    source 0.0.0.0%1/0
    source-address-translation {
        type automap
    }
    vs-index 31
}

Cheers, Kai

3

Thanks, Kai. That is very helpful, except I found one caveat. I exported the virtual servers in my lab environment and changed the destination IP addresses in a text editor. When I tried to load the new virtual server configs with a new destination address, the system said that “the requested virtual address was not found.” So, I had to manually enter the virtual address before I could load in the new virtual server.

4

You’re welcome^^ Regarding the missing virtual address warning: Hmm.. I didn’t run into the issue. The provided logfile was taken from my v12.0 developement system and the changed IP didn’t exists before… Some version specific problems then? Cheers, Kai

5

That’s possible. I’m using 11.6 so there is a version difference.