OSPF多进程之间通信的问题

请问怎么在这个拓扑中让PC1和PC2 能够ping通

https://wenku.baidu.com/view/a99e916458f5f61fb6366612.html

进程间路由相互引入
配置如下
R1
[R1]display current-configuration
[V200R003C00]
#
sysname R1
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load portalpage.zip
#
drop illegal-mac alarm
#
set cpu-usage threshold 80 restore 75
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %$%$K8m.Nt84DZ}e#<08bmE3Uw}%$%$
local-user admin service-type http
#
firewall zone Local
priority 15
#
interface GigabitEthernet0/0/0
ip address 12.1.1.1 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 192.168.1.254 255.255.255.0
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
ospf 1
import-route ospf 2
area 0.0.0.0
network 12.1.1.0 0.0.0.255
#
ospf 2
import-route ospf 1
area 0.0.0.0
network 192.168.1.0 0.0.0.255
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
R2的配置
[R2]display current-configuration
[V200R003C00]
#
sysname R2
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load portalpage.zip
#
drop illegal-mac alarm
#
set cpu-usage threshold 80 restore 75
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %$%$K8m.Nt84DZ}e#<08bmE3Uw}%$%$
local-user admin service-type http
#
firewall zone Local
priority 15
#
interface GigabitEthernet0/0/0
ip address 12.1.1.2 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 23.1.1.2 255.255.255.0
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
ospf 1
area 0.0.0.0
network 12.1.1.0 0.0.0.255
network 23.1.1.0 0.0.0.255
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
R3的 配置
[R3]dis current-configuration
[V200R003C00]
#
sysname R3
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load portalpage.zip
#
drop illegal-mac alarm
#
set cpu-usage threshold 80 restore 75
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$
local-user admin service-type http
#
firewall zone Local
priority 15
#
interface GigabitEthernet0/0/0
ip address 23.1.1.3 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 192.168.2.254 255.255.255.0
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
ospf 1
import-route ospf 2
area 0.0.0.0
network 23.1.1.0 0.0.0.255
#
ospf 2
import-route ospf 1
area 0.0.0.0
network 192.168.2.0 0.0.0.255
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
[R3]