[c-nsp] tunnel packets

[K bharathan]

hi all
struggle to understand the following:

a packet travelled from remote ipsec (tunnel mode) tunnel point to endpoint
(hub & spoke tunnel )
source tunnel ip is 1.1.1.1 (wan ip)
remote tunnel ip is 1.1.1.2 (wan ip)

tunneling from a remote lan network  of 10.10.0.0/24 to 10.0.10.0/24
if i understand correctly in ipsec tunnel mode  the packets are encapsulated
with  new source ip header ;
so the above packet will have source ip as 1.1.1.1 and destination as
1.1.1.2

now i if i want to route a specific destination packet to another gateway; (
this static route i will put on the hub router;)
so hub router will decrypt the packet and route to next hop;

what will be the soruce ip of the packet when it reaches the next gateway;
it shud be within any one of 10.10.10.0/24 ?
if so when packet comes back it reaches back to 10.0.10.0/24;

appreciate some clarities on this

-bharathan