Tunnel status up but protocol down

[ss571]

Here is my topology in gns3: 

 I plan to form a tunnel between R3 and R4, and the loopback and tunnel interface is as shown next to the routers. I've set the tunnel source and destination for both routers with the loopback interfaces, and all physical and loopback interfaces are up for R1-4. The MTU value for both routers is the same too. But when I checked the "sh ip int br" for R3 and R4, the tunnel interface status is up, but protocol is down. May I know why is this occurring?

Below are the sh ip int br for R3 and R4:

  

 

[ss571]

And here is R4:

upgrade fpd auto
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R4
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
no ip icmp rate-limit unreachable
!
!
!
!
!
!
no ip domain lookup
ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
!
redundancy
!
!
ip tcp synwait-time 5
!
!
!
!
!
!
!
!
!
!
interface Loopback0
 ip address 148.90.255.249 255.255.255.252
!
interface Tunnel1
 ip address 192.168.0.2 255.255.255.252
 ip mtu 1400
 tunnel source 148.90.255.254
 tunnel destination 148.90.255.253
!
interface FastEthernet0/0
 ip address 148.90.255.42 255.255.255.252
 ip ospf authentication message-digest
 ip ospf message-digest-key 1 md5 key
 duplex half
!
interface GigabitEthernet1/0
 ip address 148.92.0.1 255.255.255.252
 negotiation auto
!
interface GigabitEthernet2/0
 no ip address
 shutdown
 negotiation auto
!
interface GigabitEthernet3/0
 no ip address
 shutdown
 negotiation auto
!
interface GigabitEthernet4/0
 no ip address
 shutdown
 negotiation auto
!
interface GigabitEthernet5/0
 no ip address
 shutdown
 negotiation auto
!
interface GigabitEthernet6/0
 no ip address
 shutdown
 negotiation auto
!
router ospf 1
 network 148.90.255.40 0.0.0.3 area 0
 network 148.90.255.248 0.0.0.3 area 0
 network 192.168.0.0 0.0.0.3 area 0
 default-information originate
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
no cdp log mismatch duplex
!
!
!
control-plane
!
!
!
mgcp profile default
!
!
!
gatekeeper
 shutdown
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 stopbits 1
line aux 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 stopbits 1
line vty 0 4
 login
 transport input all
!
!
end

[MHM Cisco World · Accepted solution]

As I guess 
never use same IGP for both tunnel and it is tunnel source 
here you use OSPF 1 for tunnel and for tunnel source (looback which is no correct add to OSPF)
so what you need is 
A-interface loopback 

ip ospf network point-to-point

<<- you need to add this in both router 
B-router ospf 1  <<- you need to add this in both router 

net <LO IP> area 0

C-router ospf 10 <<- you need to add this in both router 

net <tunnel IP> area 0

why need two separate OSPF ? 
https://study-ccnp.com/gre-tunnels-recursive-routing-problems/

MHM

[ss571]

Does that mean B and C needs to be added into R1 to 4? or just R3 and R4?