Question – Can NCM replace an octet from an IP address when applying scripts to multiple routers?

srogers1

Router1 - new config "ip route 192.168.10.10 255.255.255.255 10.1.10.1

I've got a mass deployment of configs to add additional static routes to existing routers and the next hop will be different for each site. Is there a way for NCM to do this?

For example

3 routers

Router1 - new config "ip route 192.168.10.10 255.255.255.255 10.1.10.1

Router2 - new config "ip route 192.168.10.10 255.255.255.255 10.1.20.1

Router3 - new config "ip route 192.168.10.10 255.255.255.255 10.1.30.1

Rather than logging on to a large amount of routers (100+) and making this change manually or creating a job in NCM for each router, which would take about as long as logging on to each of them, I'd like NCM to be able to change the 3rd octet for me.

Any ideas would be appreciated

Cheers

Steve

cvachovecj

Steve,

I think you have two possibilities here.

1. Address for next hop can be somehow derived from e.g. IP of the router.
2. Address for next hop can't be derived from router information (IP, hostname etc.)

In both cases, you will need to create a Config Change Template. The general skeleton will look like this (example taken from ):

script ChangeAccessList (NCM.Nodes @ContextNode)
{
  string @myip = '10.10.'
  @myip = @myip + @ContextNode.AssetTag         here we make the asset tag part of the IP address
  @myip = @myip + '.32'                         finish building IP
  CLI                                           commands within a CLI block are sent to the device
  {
    configure terminal
    no access-list 112
    access-list 112 remark This is a test
    access-list 112 permit tcp @myip 0.0.0.31 host 123.234.123.234 eq 445       include the IP with asset tag info in the access list
  }
}

For option 1, second line of the script could look like

@myip = @myip + @ContextNode.AgentIP

(See Orion Network Configuration Manager Administrator Guide for full list of variables that you can use.)

For option 2, you'll have to define a custom property (AssetTag in the example), define the for each device and then use it in the same way as above. I strongly suggest reading the blog mentioned above.

Regards,

Jiri