The problem is not on R2. I can ping 188.8.131.52 on that router.
On R3 this route should work as a last resort
D*EX 192.168.9.0/24 [170/281856] via 184.108.40.206, 00:10:27, Ethernet0/0.10
But it dosn't work.
On R2 I have a default route that was created when I set the command "ip default-network 192.168.9.0". This is another question, I haven't seen in the theory that a default route should be created in the routing table when you set that command.
I mean this route should be in the routing table as a last resort
S* 192.168.9.0/24 [1/0] via 220.127.116.11
But I haven't seen that the default route should appear in the routing table
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