Hi Laz,
I am having doubt about TTL, as per 1,2,3 packet I am getting TTL= 255 at spoke 1 when it will send packet to hub TTL received by hub must be 254 and it will forward packet by changing TTL to 253 which will be received by spoke 2 and same in case of when spoke 2 tries to communicate to spoke 1 and in response TTL send by both spokes must be 253 not 255, Kindly suggest still confused in it .
Secondly I am unable to understand split horizon here, b/w two directly connected interface interface i can understand but here single tunnel at Hub connected to two spokes so not understandable, could you explore it how spilt horizon happening here?