My customer will have:
ISP 1 for data (30MB) vlan 1 (carrier provided a Cisco 800 and public IP) up and running
ISP 2 for Voice (SIP) vlan 100.
I am looking for the data configuration on FA0/1/0 to send my data traffic to ISP 1 cisco 800.
The WAN port will be utilized for the SIP trunk in a few days.
Some info here:
I don't think you are over-engineering it. It is actually a pretty clever and safe design to go with two WAN connections. Right now we can only support that with an extra device in front of the UC500 though.
You would be best fitted with installing an SA520/540 series security appliance. This device has 2 ports that are able to be used as WAN ports. It has a dedicated WAN port and an Optional port. You configure them for load balancing and then do protocol binding to force all RTP and SIP information to use a certain WAN link. The UC540s are not designed to do what you are asking. Will they do it? Most likely. Is it do-able in CLI? Most likely. Is it a supported configuration? NO.
You could use CLI to configure the optional port on the UC540 for a router on the other side of the connection, and then set an IP address on the interface in CLI. There would be much more in the way of configuration to make this actually work, but that would get you started. I must warn you, if you do implement the UC540 in this fashion you WILL NOT be supported when you call the Small Business Support Center. Bottom line, Bob, get a SA5x0 device put in front of this UC540 and we will support it full out, not to mention you will have greater control over the access to your network and better performance from your UC540.
I hope this helps.