vtun40 - to router D area 7 - yes, but cost 10, not 5.
What interface do you mean?
from A
show protocols ospf area 7
network 172.16.1.168/30
network 172.16.1.192/30
show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface RXmtL RqstL DBsmL
1.1.1.6 1 Full/DROther 30.757s 172.16.1.114 vtun31:172.16.1.113 0 0 0
1.1.1.15 1 Full/DROther 39.604s 172.16.1.58 vtun21:172.16.1.57 0 0 0
1.1.1.11 1 Full/DROther 33.519s 172.16.1.46 vtun19:172.16.1.45 0 0 0
1.1.1.4 1 Full/DROther 36.599s 172.16.1.186 vtun1:172.16.1.185 0 0 0
1.1.1.8 1 Full/DROther 39.530s 172.16.1.178 vtun5:172.16.1.177 0 0 0
1.1.1.9 1 Full/DROther 36.164s 172.16.1.174 vtun4:172.16.1.173 0 0 0
1.1.1.16 1 Full/DROther 35.813s 172.16.1.34 vtun16:172.16.1.33 0 0 0
1.1.1.5 1 Full/DROther 30.929s 172.16.1.6 vtun9:172.16.1.5 0 0 0
1.1.1.12 1 Full/DROther 30.965s 172.16.1.2 vtun8:172.16.1.1 0 0 0
1.1.1.8 10 Full/DROther 33.049s 172.16.1.170 vtun3:172.16.1.169 0 0 0
1.1.1.14 10 Full/DROther 36.798s 172.16.1.194 vtun40:172.16.1.193 0 0 0
show ip route ospf
O 10.0.0.0/8 [110/20] via 172.16.1.34, 1d16h20m
O 172.16.1.2/32 [110/10] is directly connected, vtun8, 1d03h26m
O 172.16.1.6/32 [110/5] is directly connected, vtun9, 2d03h46m
O 172.16.1.34/32 [110/5] is directly connected, vtun16, 6d22h29m
O 172.16.1.38/32 [110/10] is directly connected, vtun17, 00:00:37
O 172.16.1.46/32 [110/5] is directly connected, vtun19, 01w0d19h
O>* 172.16.1.53/32 [110/15] via 172.16.1.6, vtun9, 2d03h46m
O>* 172.16.1.54/32 [110/20] via 172.16.1.6, vtun9, 2d03h46m
O 172.16.1.58/32 [110/5] is directly connected, vtun21, 01w0d23h
O>* 172.16.1.73/32 [110/20] via 172.16.1.2, vtun8, 1d03h26m
O>* 172.16.1.74/32 [110/25] via 172.16.1.6, vtun9, 2d03h46m
O>* 172.16.1.77/32 [110/15] via 172.16.1.186, vtun1, 00:18:01
O>* 172.16.1.78/32 [110/20] via 172.16.1.186, vtun1, 00:18:01
O 172.16.1.114/32 [110/5] is directly connected, vtun31, 01w1d01h
O>* 172.16.1.118/32 [110/25] via 172.16.1.114, vtun31, 2d20h35m
O>* 172.16.1.121/32 [110/15] via 172.16.1.114, vtun31, 01w1d01h
O>* 172.16.1.122/32 [110/20] via 172.16.1.114, vtun31, 01w1d01h
O>* 172.16.1.154/32 [110/25] via 172.16.1.58, vtun21, 00:00:37
O>* 172.16.1.158/32 [110/15] via 172.16.1.46, vtun19, 01w0d19h
O>* 172.16.1.161/32 [110/15] via 172.16.1.170, vtun3, 21:57:25
O>* 172.16.1.162/32 [110/25] via 172.16.1.170, vtun3, 20:44:30
O>* 172.16.1.166/32 [110/15] via 172.16.1.178, vtun5, 01w0d16h
O 172.16.1.170/32 [110/5] is directly connected, vtun3, 21:57:25
O 172.16.1.174/32 [110/10] is directly connected, vtun4, 01w0d11h
O 172.16.1.178/32 [110/5] is directly connected, vtun5, 01w0d16h
O>* 172.16.1.182/32 [110/20] via 172.16.1.174, vtun4, 1d14h32m
O 172.16.1.186/32 [110/5] is directly connected, vtun1, 01w0d17h
O>* 172.16.1.189/32 [110/15] via 172.16.1.58, vtun21, 01w0d22h
O>* 172.16.1.190/32 [110/20] via 172.16.1.58, vtun21, 01w0d21h
O 172.16.1.194/32 [110/10] is directly connected, vtun40, 23:12:55
O>* 172.16.1.202/32 [110/15] via 172.16.1.34, vtun16, 1d16h20m
O 192.168.3.0/24 [110/20] via 172.16.1.34, 1d16h20m
O 192.168.4.0/24 [110/20] via 172.16.1.194, 00:07:02
O 192.168.19.0/24 [110/20] via 172.16.1.170, 00:16:58
O>* 192.168.22.0/23 [110/20] via 172.16.1.6, vtun9, 2d03h45m
O>* 192.168.24.0/23 [110/20] via 172.16.1.186, vtun1, 00:18:00
O>* 192.168.36.0/22 [110/20] via 172.16.1.34, vtun16, 1d16h20m
O>* 192.168.40.0/22 [110/20] via 172.16.1.58, vtun21, 01w0d22h
O>* 192.168.44.0/22 [110/20] via 172.16.1.114, vtun31, 01w1d01h
O>* 192.168.48.0/22 [110/20] via 172.16.1.46, vtun19, 01w0d19h