[44net] Cannot ping a host

Hi, I joined to ampr network recently, set up IPIP tunnel on Cisco router and directly connected Raspberry Pi 3 (44.165.1.50/28) to one of its interfaces (44.165.1.49). It works great, I can ping and connect to and from this Pi device from outside. The problem is that I cannot ping this Cisco's 44.165.1.49/28 interface from outside. It should work as 44 packet leaves a tunnel, finds this internal interface and should get back to tunnel. I have PBR route who directs all packets from this interface directly to tunell. Each host has a valid 44 DNS address. Interfaces: Interface IP-Address OK? Method Status Protocol GigabitEthernet0/0 91.199.89.253 YES NVRAM up up FastEthernet2/0 44.165.1.49 YES manual up up Tunnel0 unassigned YES unset up up Routing table: 44.0.0.0/8 is variably subnetted, 244 subnets, 12 masks C 44.165.1.48/28 is directly connected, FastEthernet2/0 L 44.165.1.49/32 is directly connected, FastEthernet2/0 Config: interface Tunnel0 no ip address tunnel source GigabitEthernet0/0 tunnel mode ipip tunnel destination 169.228.34.84 route-map AMPR-ROUTE permit 10 match ip address 11 set default interface Tunnel0 access-list 11 permit 44.165.1.48 0.0.0.15 ARP: Protocol Address Age (min) Hardware Addr Type Interface Internet 44.165.1.49 - 001e.f7af.4cd9 ARPA FastEthernet2/0 Internet 44.165.1.50 27 b827.eb7e.840a ARPA FastEthernet2/0 Any ideas? Regards, Tomek