Our data center network is:
I want to have our sites use 10.X.X.X/24 (Site Number, VLAN, host)
10.X would be corporate network 20.X would be voip
10.X corporate network 20. VOIP
They will make a site to site connection via CIsco firewall to our datacenter to gain access to domain ,firewall, WSUS server etc...
I was told I can't use this scheme as site to site won't work. But I don't see anything wrong with this setup? AM I missing something?
Firewall tunnel is setup like this
Site A Networks
CorporateNetwork 10.10.10.0 255.255.255.0
VLAN Network 10.10.20.0 255.255.255.0
Group-Object SiteName CorporateNetwork VLAN Network
nat (inside,outside) 1 source static SiteName SiteName destination static SiteName SiteName no-proxy-arp route-lookup
object network CorporateNetwork nat (any,outside) dynamic interface etc....