Question : ping problem(site-to-site vpn)

Hi
i am trying to implement this on gns3
ref : http://www.blindhog.net/cisco-how-to-configure-an-ipsec-vpn/

and my configuration is attached in picture

as you can see..
i can ping 192.168.1.1 and 12.34.56.2
but i cant ping 12.34.56.1

my config : for R4

Thanks for your hlep
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Building configuration...

Current configuration : 565 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
!
!
memory-size iomem 15
ip subnet-zero
!
!
!
!
!
!
interface FastEthernet0/0
 ip address 192.168.1.1 255.255.255.0
 duplex auto
 speed auto
!
interface Serial0/0
 ip address 12.34.56.2 255.255.255.252
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/1
 no ip address
 shutdown
!
ip classless
ip route 0.0.0.0 0.0.0.0 12.34.56.1
ip http server
!
!
line con 0
line aux 0
line vty 0 4
!
end
Attachments:
 
ping problem
ping problem
 

Answer : ping problem(site-to-site vpn)

1.try to use CCLEAN to delete all temp and cookies.
2.if you are using IE go to your internet browser > TOOLS > INTERNET OPTIONS > in general tab go to
browsing history and choose delete .... in the new windows select what you want do delete.
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