Hello Everyone,
Here is an another proposed solution by me for my previous Static Routes over FR issue post. I was just trying to grab someone GRE concepts so I thought to lab up that scenario again and try to fix it with GRE keepalives this time. Although you might see different ip addressing this time, but I have attached "sh ip int b" output to simplify that for you.
Just as a side note - GRE keepalives can be enabled on one side and it will work fine. It's not like serial or Ethernet keepalives which are to be enabled on both sides.
http://deepakarora1984.blogspot.com/2008/12/static-route-issue-over-frame-relay.html
R1
---
R1(config)#do term len 0
R1(config)#do sh run
Building configuration...
Current configuration : 1171 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
!
!
no ip cef
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback1
ip address 100.100.100.1 255.255.255.0
!
interface Tunnel0
ip address 150.0.0.1 255.0.0.0
keepalive 1 3
tunnel source Serial0/0
tunnel destination 1.1.1.1
!
interface Serial0/0
ip address 1.1.1.0 255.255.255.254
encapsulation frame-relay
serial restart-delay 0
!
interface Serial0/1
ip address 2.2.2.0 255.255.255.254
serial restart-delay 0
!
interface Serial0/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial0/3
no ip address
shutdown
serial restart-delay 0
!
ip http server
ip forward-protocol nd
ip route 3.3.3.0 255.255.255.0 2.2.2.1
ip route 200.200.200.0 255.255.255.0 150.0.0.2
ip route 200.200.200.0 255.255.255.0 2.2.2.1 10
!
!
!
access-list 101 permit ip 150.0.0.0 0.255.255.255 200.0.0.0 0.255.255.255
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
!
!
end
R1(config)#
R1(config)#do sh ip int b
Interface IP-Address OK? Method Status Prot
ocol
Serial0/0 1.1.1.0 YES manual up up
Serial0/1 2.2.2.0 YES manual up up
Serial0/2 unassigned YES unset administratively down down
Serial0/3 unassigned YES unset administratively down down
Loopback0 10.0.0.1 YES manual up up
Loopback1 100.100.100.1 YES manual up up
Tunnel0 150.0.0.1 YES manual up up
R1(config)#
R1(config)#do sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
S 200.200.200.0/24 [1/0] via 150.0.0.2
1.0.0.0/31 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Serial0/0
2.0.0.0/31 is subnetted, 1 subnets
C 2.2.2.0 is directly connected, Serial0/1
100.0.0.0/24 is subnetted, 1 subnets
C 100.100.100.0 is directly connected, Loopback1
3.0.0.0/24 is subnetted, 1 subnets
S 3.3.3.0 [1/0] via 2.2.2.1
10.0.0.0/24 is subnetted, 1 subnets
C 10.0.0.0 is directly connected, Loopback0
C 150.0.0.0/8 is directly connected, Tunnel0
R1(config)#
---------------------------------------------------
R2
---
R2(config)#do term len 0
R2(config)#do sh run
Building configuration...
Current configuration : 1097 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
!
!
no ip cef
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback1
ip address 200.200.200.1 255.255.255.0
!
interface Tunnel0
ip address 150.0.0.2 255.0.0.0
keepalive 1 3
tunnel source Serial0/0
tunnel destination 1.1.1.0
!
interface Serial0/0
ip address 1.1.1.1 255.255.255.254
encapsulation frame-relay
serial restart-delay 0
!
interface Serial0/1
ip address 3.3.3.1 255.255.255.254
serial restart-delay 0
!
interface Serial0/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial0/3
no ip address
shutdown
serial restart-delay 0
!
ip http server
ip forward-protocol nd
ip route 2.2.2.0 255.255.255.0 3.3.3.0
ip route 100.100.100.0 255.255.255.0 150.0.0.1
ip route 100.100.100.0 255.255.255.0 3.3.3.0 10
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
!
!
end
R2(config)#
R2(config)#do sh ip int brief
Interface IP-Address OK? Method Status Prot
ocol
Serial0/0 1.1.1.1 YES manual up up
Serial0/1 3.3.3.1 YES manual up up
Serial0/2 unassigned YES unset administratively down down
Serial0/3 unassigned YES unset administratively down down
Loopback0 20.0.0.1 YES manual up up
Loopback1 200.200.200.1 YES manual up up
Tunnel0 150.0.0.2 YES manual up up
R2(config)#
R2(config)#do sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
C 200.200.200.0/24 is directly connected, Loopback1
1.0.0.0/31 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Serial0/0
2.0.0.0/24 is subnetted, 1 subnets
S 2.2.2.0 [1/0] via 3.3.3.0
100.0.0.0/24 is subnetted, 1 subnets
S 100.100.100.0 [1/0] via 150.0.0.1
3.0.0.0/31 is subnetted, 1 subnets
C 3.3.3.0 is directly connected, Serial0/1
20.0.0.0/24 is subnetted, 1 subnets
C 20.0.0.0 is directly connected, Loopback0
C 150.0.0.0/8 is directly connected, Tunnel0
R2(config)#
-----------------------------------------------------------------
R3
---
R3#term len 0
R3#sh run
Building configuration...
Current configuration : 825 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
!
!
no ip cef
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Serial0/0
ip address 2.2.2.1 255.255.255.254
no ip route-cache
serial restart-delay 0
!
interface Serial0/1
ip address 3.3.3.0 255.255.255.254
no ip route-cache
serial restart-delay 0
!
interface Serial0/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial0/3
no ip address
shutdown
serial restart-delay 0
!
ip http server
ip forward-protocol nd
ip route 100.100.100.0 255.255.255.0 2.2.2.0
ip route 200.200.200.0 255.255.255.0 3.3.3.1
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
!
!
end
R3#
R3#sh ip int brief
Interface IP-Address OK? Method Status Prot
ocol
Serial0/0 2.2.2.1 YES manual up up
Serial0/1 3.3.3.0 YES manual up up
Serial0/2 unassigned YES unset administratively down down
Serial0/3 unassigned YES unset administratively down down
R3#
R3#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
S 200.200.200.0/24 [1/0] via 3.3.3.1
2.0.0.0/31 is subnetted, 1 subnets
C 2.2.2.0 is directly connected, Serial0/0
100.0.0.0/24 is subnetted, 1 subnets
S 100.100.100.0 [1/0] via 2.2.2.0
3.0.0.0/31 is subnetted, 1 subnets
C 3.3.3.0 is directly connected, Serial0/1
R3#
Here is an another proposed solution by me for my previous Static Routes over FR issue post. I was just trying to grab someone GRE concepts so I thought to lab up that scenario again and try to fix it with GRE keepalives this time. Although you might see different ip addressing this time, but I have attached "sh ip int b" output to simplify that for you.
Just as a side note - GRE keepalives can be enabled on one side and it will work fine. It's not like serial or Ethernet keepalives which are to be enabled on both sides.
http://deepakarora1984.blogspot.com/2008/12/static-route-issue-over-frame-relay.html
---
R1(config)#do term len 0
R1(config)#do sh run
Building configuration...
Current configuration : 1171 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
!
!
no ip cef
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback1
ip address 100.100.100.1 255.255.255.0
!
interface Tunnel0
ip address 150.0.0.1 255.0.0.0
keepalive 1 3
tunnel source Serial0/0
tunnel destination 1.1.1.1
!
interface Serial0/0
ip address 1.1.1.0 255.255.255.254
encapsulation frame-relay
serial restart-delay 0
!
interface Serial0/1
ip address 2.2.2.0 255.255.255.254
serial restart-delay 0
!
interface Serial0/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial0/3
no ip address
shutdown
serial restart-delay 0
!
ip http server
ip forward-protocol nd
ip route 3.3.3.0 255.255.255.0 2.2.2.1
ip route 200.200.200.0 255.255.255.0 150.0.0.2
ip route 200.200.200.0 255.255.255.0 2.2.2.1 10
!
!
!
access-list 101 permit ip 150.0.0.0 0.255.255.255 200.0.0.0 0.255.255.255
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
!
!
end
R1(config)#
R1(config)#do sh ip int b
Interface IP-Address OK? Method Status Prot
ocol
Serial0/0 1.1.1.0 YES manual up up
Serial0/1 2.2.2.0 YES manual up up
Serial0/2 unassigned YES unset administratively down down
Serial0/3 unassigned YES unset administratively down down
Loopback0 10.0.0.1 YES manual up up
Loopback1 100.100.100.1 YES manual up up
Tunnel0 150.0.0.1 YES manual up up
R1(config)#
R1(config)#do sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
S 200.200.200.0/24 [1/0] via 150.0.0.2
1.0.0.0/31 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Serial0/0
2.0.0.0/31 is subnetted, 1 subnets
C 2.2.2.0 is directly connected, Serial0/1
100.0.0.0/24 is subnetted, 1 subnets
C 100.100.100.0 is directly connected, Loopback1
3.0.0.0/24 is subnetted, 1 subnets
S 3.3.3.0 [1/0] via 2.2.2.1
10.0.0.0/24 is subnetted, 1 subnets
C 10.0.0.0 is directly connected, Loopback0
C 150.0.0.0/8 is directly connected, Tunnel0
R1(config)#
---------------------------------------------------
R2
---
R2(config)#do term len 0
R2(config)#do sh run
Building configuration...
Current configuration : 1097 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
!
!
no ip cef
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback1
ip address 200.200.200.1 255.255.255.0
!
interface Tunnel0
ip address 150.0.0.2 255.0.0.0
keepalive 1 3
tunnel source Serial0/0
tunnel destination 1.1.1.0
!
interface Serial0/0
ip address 1.1.1.1 255.255.255.254
encapsulation frame-relay
serial restart-delay 0
!
interface Serial0/1
ip address 3.3.3.1 255.255.255.254
serial restart-delay 0
!
interface Serial0/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial0/3
no ip address
shutdown
serial restart-delay 0
!
ip http server
ip forward-protocol nd
ip route 2.2.2.0 255.255.255.0 3.3.3.0
ip route 100.100.100.0 255.255.255.0 150.0.0.1
ip route 100.100.100.0 255.255.255.0 3.3.3.0 10
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
!
!
end
R2(config)#
R2(config)#do sh ip int brief
Interface IP-Address OK? Method Status Prot
ocol
Serial0/0 1.1.1.1 YES manual up up
Serial0/1 3.3.3.1 YES manual up up
Serial0/2 unassigned YES unset administratively down down
Serial0/3 unassigned YES unset administratively down down
Loopback0 20.0.0.1 YES manual up up
Loopback1 200.200.200.1 YES manual up up
Tunnel0 150.0.0.2 YES manual up up
R2(config)#
R2(config)#do sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
C 200.200.200.0/24 is directly connected, Loopback1
1.0.0.0/31 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Serial0/0
2.0.0.0/24 is subnetted, 1 subnets
S 2.2.2.0 [1/0] via 3.3.3.0
100.0.0.0/24 is subnetted, 1 subnets
S 100.100.100.0 [1/0] via 150.0.0.1
3.0.0.0/31 is subnetted, 1 subnets
C 3.3.3.0 is directly connected, Serial0/1
20.0.0.0/24 is subnetted, 1 subnets
C 20.0.0.0 is directly connected, Loopback0
C 150.0.0.0/8 is directly connected, Tunnel0
R2(config)#
-----------------------------------------------------------------
R3
---
R3#term len 0
R3#sh run
Building configuration...
Current configuration : 825 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
!
!
no ip cef
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Serial0/0
ip address 2.2.2.1 255.255.255.254
no ip route-cache
serial restart-delay 0
!
interface Serial0/1
ip address 3.3.3.0 255.255.255.254
no ip route-cache
serial restart-delay 0
!
interface Serial0/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial0/3
no ip address
shutdown
serial restart-delay 0
!
ip http server
ip forward-protocol nd
ip route 100.100.100.0 255.255.255.0 2.2.2.0
ip route 200.200.200.0 255.255.255.0 3.3.3.1
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
!
!
end
R3#
R3#sh ip int brief
Interface IP-Address OK? Method Status Prot
ocol
Serial0/0 2.2.2.1 YES manual up up
Serial0/1 3.3.3.0 YES manual up up
Serial0/2 unassigned YES unset administratively down down
Serial0/3 unassigned YES unset administratively down down
R3#
R3#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
S 200.200.200.0/24 [1/0] via 3.3.3.1
2.0.0.0/31 is subnetted, 1 subnets
C 2.2.2.0 is directly connected, Serial0/0
100.0.0.0/24 is subnetted, 1 subnets
S 100.100.100.0 [1/0] via 2.2.2.0
3.0.0.0/31 is subnetted, 1 subnets
C 3.3.3.0 is directly connected, Serial0/1
R3#
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