First of all, is this a lab or a production router?
Looks like you are trying to connect to the VPN using omnomnom.local. If this is a production router then this will not work an you would need to setup up a public domain name to use (for example, omnomnom.com).
If this is a lab setup, then make sure that your DNS server has an A record for omnomnom.local that resolves to the public IP of the ASA.
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