interface Vlan1
 ip address 10.10.7.1 255.255.255.0
 ip access-group 199 in
 ip nat inside
 ip virtual-reassembly
!         
interface Vlan2
 ip address 10.10.8.1 255.255.255.0
 ip nat inside
 ip virtual-reassembly

ip nat pool ovrld 67.86.116.242 67.86.116.242 prefix-length 24
ip nat inside source list 1 pool ovrld overload
!         
access-list 1 permit 10.10.7.0 0.0.0.255
access-list 1 permit 10.10.8.0 0.0.0.255
access-list 199 permit ip 10.10.7.0 0.0.0.255 any
access-list 199 permit ip 10.10.8.0 0.0.0.255 any