How to configure remote site to use other Internet resource on particular video call

Question

I have two sites using UTM 9 and connected via site to site VPN. 
 Site A and Site B has cisco telepresence installed but only site A can connect to a public hosted video conference bridge due to site restriction. (this no need to fix) 
 How can I configure site B to use site A internet if lets say site B want to connect to (public IP example) IP : 200.21.12.1 ?

BAlfson · Answer

Is the UTM in site A? If so, is 200.21.12.1 in 'Local Networks' in the IPsec Connection definition and in what corresponds to 'Remote Networks' in the Cisco? If so, then you only need a Masquerading rule in the UTM like: 
 {site B network} -> External 
 Routing will be handled automatically by WebAdmin. Depending on what else you've done, you might need to create a firewall rule like: 
 {site B network} -> {Services} -> {200.21.12.1} : Allow 
 Cheers - Bob

BAlfson · Answer

A picture is worth a thousand words - my post above has the right answer, but I misunderstood what was where. 
 You just add 200.21.12.1 to the tunnel by adding it to 'Local Networks' in the IPsec Connection in B and to 'Remote Networks' in the Remote Gateway in A. Then, create the masquerading and firewall rules in B for 192.168.2.0/24. 
 If you really only need 192.168.2.50 to reach 200.21.12.1, I would consider a separate tunnel with only those IPs. 
 Cheers - Bob