below is a capture of the configuration. R1 can ping the other two routers but R2 and R3 can't ping each other. Any idea what my issue could be?
Screen Shot 2018-09-03 at 2.57.00 PM.png
Router2#sh run
interface GigabitEthernet0/0
ip address 192.168.2.2 255.255.255.240
duplex auto
speed auto
Router1:
interface GigabitEthernet0/0
ip address 192.168.2.1 255.255.255.240
duplex auto
speed auto
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial0/0/0
ip address 192.168.2.17 255.255.255.240
clock rate 2000000
Router3:
interface Serial0/0/0
ip address 192.168.2.18 255.255.255.240
!
interface Serial0/0/1
no ip address
clock rate 2000000
shutdown
! these are the changes made to the routers