R4#config t
Enter configuration commands, one per line. End with CNTL/Z.
R4(config)#ipv
R4(config)#ipv6 ?
access-list Configure access lists
cef Cisco Express Forwarding
dhcp Configure Ipv6 DHCP
general-prefix Configure a general IPv6 prefix
host Configure static hostnames
inspect Context-based Access Control Engine
local Specify local options
nat NAT-PT Configuration commands
neighbor Neighbor
route Configure static routes
router Enable an IPV6 routing process
unicast-routing Enable unicast routing
R4(config)#ipv6 unicast-routing
Step 2) Now I will configure Static Route, in here I need to put the destination Network inside my R4 router
That is I need to have:
ipv6 route FEC0:1000::1/128 2001:4444::10
Destination Network (Next Hop address)
We must do above commands for all Loopback address , since the goal is that seated at R4
I should be able to ping all loopback address located on R10
ipv6 route FEC0:1000::2/128 2001:4444::10
ipv6 route FEC0:1000::3/128 2001:4444::10
ipv6 route FEC0:1000::4/128 2001:4444::10
Now we will configure it on R4 (using the ? mark)
R4#config t
Enter configuration commands, one per line. End with CNTL/Z.
R4(config)#ipv6 ?
access-list Configure access lists
cef Cisco Express Forwarding
dhcp Configure Ipv6 DHCP
general-prefix Configure a general IPv6 prefix
host Configure static hostnames
inspect Context-based Access Control Engine
local Specify local options
nat NAT-PT Configuration commands
neighbor Neighbor
route Configure static routes
router Enable an IPV6 routing process
unicast-routing Enable unicast routing
R4(config)#ipv6 route ?
X:X:X:X::X/<0-128> IPv6 prefix
R4(config)#ipv6 route FEC0:1000::1/128 ?
Ethernet IEEE 802.3
FastEthernet FastEthernet IEEE 802.3
GigabitEthernet GigabitEthernet IEEE 802.3z
Loopback Loopback interface
Serial Serial
Vlan Catalyst Vlans
X:X:X:X::X IPv6 address of next-hop
R4(config)#ipv6 route FEC0:1000::1/128 2001:4444::10 ?
<1-254> Administrative distance
<cr>
R4(config)#ipv6 route FEC0:1000::1/128 2001:4444::10
R4(config)#
Now I will just use up arrow key and put the rest of loopback network
R4(config)#ipv6 route FEC0:1000::1/128 2001:4444::10
R4(config)#
R4(config)#
R4(config)#ipv6 route FEC0:1000::2/128 2001:4444::10
R4(config)#ipv6 route FEC0:1000::3/128 2001:4444::10
R4(config)#ipv6 route FEC0:1000::4/128 2001:4444::10
Here is my show run so far on R4#
R4#show run
ipv6 unicast-routing
!
!
!
ipv6 route FEC0:1000::1/128 2001:4444::10
ipv6 route FEC0:1000::2/128 2001:4444::10
ipv6 route FEC0:1000::3/128 2001:4444::10
ipv6 route FEC0:1000::4/128 2001:4444::10
!
Now If I try to ping from R4 to the loopback address of R10 , it will work .
R4#ping FEC0:1000::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to FEC0:1000::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/0 ms
R4#ping FEC0:1000::2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to FEC0:1000::2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/1 ms
R4#ping FEC0:1000::3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to FEC0:1000::3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/0 ms
R4#ping FEC0:1000::4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to FEC0:1000::4, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/1/8 ms
But if I had some loopback address on the R4 , then R10 can not ping that loopback address , we can use same concept as above or I Can show you the concept of Default route.
I go to R4 and create one Loopback address on R4#
R4#config t
Enter configuration commands, one per line. End with CNTL/Z.
R4(config)#int loopback 1
R4(config-if)#ipv6 address FEC0:4000::1/128
R4(config-if)#
R4(config-if)#int loopback 2
R4(config-if)#ipv6 address FEC0:4000::2/128
R10#
Step 3) Hint: remember to enable IPV6 unicast-routing on R10
R10#config t
Enter configuration commands, one per line. End with CNTL/Z.
R10(config)#ipv
R10(config)#ipv6 un
R10(config)#ipv6 ?
access-list Configure access lists
cef Cisco Express Forwarding
dhcp Configure Ipv6 DHCP
general-prefix Configure a general IPv6 prefix
host Configure static hostnames
inspect Context-based Access Control Engine
local Specify local options
nat NAT-PT Configuration commands
neighbor Neighbor
route Configure static routes
router Enable an IPV6 routing process
unicast-routing Enable unicast routing
R10(config)#ipv6 uni
R10(config)#ipv6 unicast-routing
R10(config)#
Step 4) Now I will do Default route on R10 and I will use next hop address
R10#
ipv6 route ::/0 2001:4444::4
Hint: for default route in Ipv4 we use 0.0.0.0 0.0.0.0 but for Ipv6 we will use ::/0
R10#config t
Enter configuration commands, one per line. End with CNTL/Z.
R10(config)#ipv
R10(config)#ipv6 ?
access-list Configure access lists
cef Cisco Express Forwarding
dhcp Configure Ipv6 DHCP
general-prefix Configure a general IPv6 prefix
host Configure static hostnames
inspect Context-based Access Control Engine
local Specify local options
nat NAT-PT Configuration commands
neighbor Neighbor
route Configure static routes
router Enable an IPV6 routing process
unicast-routing Enable unicast routing
R10(config)#ipv6 rout
R10(config)#ipv6 route ?
X:X:X:X::X/<0-128> IPv6 prefix
R10(config)#ipv6 route ::/0 ?
Ethernet IEEE 802.3
FastEthernet FastEthernet IEEE 802.3
GigabitEthernet GigabitEthernet IEEE 802.3z
Loopback Loopback interface
Serial Serial
Vlan Catalyst Vlans
X:X:X:X::X IPv6 address of next-hop
R10(config)#ipv6 route ::/0 2001:4444::4
R10(config)#
Here is my Show run on R10#
ipv6 unicast-routing
ipv6 route ::/0 2001:4444::4
Now seated on R10 I should be able to ping the Loopback address of R4
R10#ping FEC0:4000::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to FEC0:4000::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/1 ms
R10#ping FEC0:4000::2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to FEC0:4000::2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/0 ms
R10#
Here is show Ipv6 route on R4 and R10
R4#show ipv6 route
IPv6 Routing Table – 9 entries
Codes: C – Connected, L – Local, S – Static, R – RIP, B – BGP
U – Per-user Static route, M – MIPv6
I1 – ISIS L1, I2 – ISIS L2, IA – ISIS interarea, IS – ISIS summary
O – OSPF intra, OI – OSPF inter, OE1 – OSPF ext 1, OE2 – OSPF ext 2
ON1 – OSPF NSSA ext 1, ON2 – OSPF NSSA ext 2
D – EIGRP, EX – EIGRP external
C 2001:4444::/64 [0/0]
via ::, FastEthernet0/0
L 2001:4444::4/128 [0/0]
via ::, FastEthernet0/0
S FEC0:1000::1/128 [1/0]
via 2001:4444::10
S FEC0:1000::2/128 [1/0]
via 2001:4444::10
S FEC0:1000::3/128 [1/0]
via 2001:4444::10
S FEC0:1000::4/128 [1/0]
via 2001:4444::10
C FEC0:4000::1/128 [0/0]
via ::, Loopback1
C FEC0:4000::2/128 [0/0]
via ::, Loopback2
L FF00::/8 [0/0]
via ::, Null0
Here is show ipv6 route for R10
R10#show ipv6 route
IPv6 Routing Table – 8 entries
Codes: C – Connected, L – Local, S – Static, R – RIP, B – BGP
U – Per-user Static route, M – MIPv6
I1 – ISIS L1, I2 – ISIS L2, IA – ISIS interarea, IS – ISIS summary
O – OSPF intra, OI – OSPF inter, OE1 – OSPF ext 1, OE2 – OSPF ext 2
ON1 – OSPF NSSA ext 1, ON2 – OSPF NSSA ext 2
D – EIGRP, EX – EIGRP external
S ::/0 [1/0]
via 2001:4444::4
C 2001:4444::/64 [0/0]
via ::, FastEthernet0/0
L 2001:4444::10/128 [0/0]
via ::, FastEthernet0/0
C FEC0:1000::1/128 [0/0]
via ::, Loopback1
C FEC0:1000::2/128 [0/0]
via ::, Loopback2
C FEC0:1000::3/128 [0/0]
via ::, Loopback3
C FEC0:1000::4/128 [0/0]
via ::, Loopback4
L FF00::/8 [0/0]
via ::, Null0
Here is summary on R4 and R10 show run:
R4#show run
interface Loopback0
ip address 4.4.4.4 255.255.255.0
!
interface Loopback1
no ip address
ipv6 address FEC0:4000::1/128
!
interface Loopback2
no ip address
ipv6 address FEC0:4000::2/128
!
interface FastEthernet0/0
ip address 10.10.10.4 255.255.255.0
duplex auto
speed auto
ipv6 address 2001:4444::4/64
!
ipv6 route FEC0:1000::1/128 2001:4444::10
ipv6 route FEC0:1000::2/128 2001:4444::10
ipv6 route FEC0:1000::3/128 2001:4444::10
ipv6 route FEC0:1000::4/128 2001:4444::10
R10#show run
Building configuration…
ipv6 unicast-routing
!
interface Loopback1
no ip address
ipv6 address FEC0:1000::1/128
!
interface Loopback2
no ip address
ipv6 address FEC0:1000::2/128
!
interface Loopback3
no ip address
ipv6 address FEC0:1000::3/128
!
interface Loopback4
no ip address
ipv6 address FEC0:1000::4/128
!
interface FastEthernet0/0
ip address 10.10.10.10 255.255.255.0
duplex auto
speed auto
ipv6 address 2001:4444::10/64
!
!
ipv6 route ::/0 2001:4444::4
!
