12-14-2021 03:09 AM - last edited on 12-14-2021 05:41 AM by Translator
hello troubleshooters !
i am facing the problem while performing IPSEC OVER GRE. On both router HQ & BR tunnels are up but protocols is down. Configuration is all right from my side.
NOTE: topology is attached below.
CONFIGURATION
ISP
ISP(config)#do sh run
Building configuration...
Current configuration : 1040 bytes
!
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname ISP
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
no ip icmp rate-limit unreachable
ip cef
!
!
!
!
!
!
no ip domain lookup
no ipv6 cef
!
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
ip tcp synwait-time 5
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
ip address 3.3.3.1 255.255.255.0
speed auto
duplex auto
!
interface FastEthernet0/1
no ip address
shutdown
speed auto
duplex auto
!
interface FastEthernet1/0
no ip address
shutdown
speed auto
duplex auto
!
interface FastEthernet1/1
ip address 6.6.6.1 255.255.255.0
speed auto
duplex auto
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
ip route 0.0.0.0 0.0.0.0 3.3.3.2
ip route 0.0.0.0 0.0.0.0 6.6.6.2
!
!
!
!
control-plane
!
!
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
!
!
end
HQ
HQ(config)#do sh run
Building configuration...
Current configuration : 1503 bytes
!
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname HQ
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
no ip icmp rate-limit unreachable
ip cef
!
!
!
!
!
!
no ip domain lookup
no ipv6 cef
!
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
ip tcp synwait-time 5
!
!
!
!
!
crypto isakmp policy 1
encr 3des
hash md5
authentication pre-share
crypto isakmp key admin address 6.6.6.2
!
!
crypto ipsec transform-set adminset esp-3des esp-md5-hmac
mode tunnel
!
crypto ipsec profile SECURE
set transform-set adminset
!
!
!
!
!
!
!
interface Tunnel1
ip address 172.12.12.1 255.255.255.0
tunnel source FastEthernet0/0
tunnel destination 172.12.12.2
tunnel protection ipsec profile SECURE
!
interface FastEthernet0/0
ip address 3.3.3.2 255.255.255.0
speed auto
duplex auto
!
interface FastEthernet0/1
ip address 192.168.10.1 255.255.255.0
speed auto
duplex auto
!
interface FastEthernet1/0
no ip address
shutdown
speed auto
duplex auto
!
interface FastEthernet1/1
no ip address
shutdown
speed auto
duplex auto
!
!
router eigrp 1
network 172.12.12.0 0.0.0.255
network 192.168.10.0
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
ip route 6.6.6.0 255.255.255.0 3.3.3.1
!
!
!
!
control-plane
!
!
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
!
!
end
BR
BR(config)#do sh run
Building configuration...
Current configuration : 1503 bytes
!
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname BR
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
no ip icmp rate-limit unreachable
ip cef
!
!
!
!
!
!
no ip domain lookup
no ipv6 cef
!
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
ip tcp synwait-time 5
!
!
!
!
!
crypto isakmp policy 1
encr 3des
hash md5
authentication pre-share
crypto isakmp key admin address 3.3.3.2
!
!
crypto ipsec transform-set adminset esp-3des esp-md5-hmac
mode tunnel
!
crypto ipsec profile SECURE
set transform-set adminset
!
!
!
!
!
!
!
interface Tunnel1
ip address 172.12.12.2 255.255.255.0
tunnel source FastEthernet1/1
tunnel destination 172.12.12.1
tunnel protection ipsec profile SECURE
!
interface FastEthernet0/0
no ip address
shutdown
speed auto
duplex auto
!
interface FastEthernet0/1
ip address 192.168.20.1 255.255.255.0
speed auto
duplex auto
!
interface FastEthernet1/0
no ip address
shutdown
speed auto
duplex auto
!
interface FastEthernet1/1
ip address 6.6.6.2 255.255.255.0
speed auto
duplex auto
!
!
router eigrp 1
network 172.12.12.0 0.0.0.255
network 192.168.20.0
!
ip forward-protocol nd
!
!
no ip http server
no ip http secure-server
ip route 3.3.3.0 255.255.255.0 6.6.6.1
!
!
!
!
control-plane
!
!
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
!
!
end
Solved! Go to Solution.
12-14-2021 03:37 AM
Hello
Your tunnel destination should not be the tunnel interface ip the opposite rtr it should point to isp routable address of its peer.
12-14-2021 03:52 AM - last edited on 12-14-2021 05:42 AM by Translator
Hello,
make the changes marked in bold:
HQ
interface Tunnel1
ip address 172.12.12.1 255.255.255.0
tunnel source FastEthernet0/0
--> tunnel destination 6.6.6.2
tunnel protection ipsec profile SECURE
BR
interface Tunnel1
ip address 172.12.12.2 255.255.255.0
tunnel source FastEthernet1/1
--> tunnel destination 3.3.3.2
tunnel protection ipsec profile SECURE
12-14-2021 03:37 AM
Hello
Your tunnel destination should not be the tunnel interface ip the opposite rtr it should point to isp routable address of its peer.
12-14-2021 03:52 AM - last edited on 12-14-2021 05:42 AM by Translator
Hello,
make the changes marked in bold:
HQ
interface Tunnel1
ip address 172.12.12.1 255.255.255.0
tunnel source FastEthernet0/0
--> tunnel destination 6.6.6.2
tunnel protection ipsec profile SECURE
BR
interface Tunnel1
ip address 172.12.12.2 255.255.255.0
tunnel source FastEthernet1/1
--> tunnel destination 3.3.3.2
tunnel protection ipsec profile SECURE
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