Topology:
Use configuration from ISIS task #3 as initial configuration for this task.
Requirements:
1. Enable IPv6 unicast routing on all routers, and configure the interfaces using assigned IPv6 prefix.
2. Configure the network to provide full IPv4 and IPv6 connectivity. Use minimal amount of memory and CPU resources.
3. Create two new loopback interfaces on R2.
loopback2, ipv4 address 2.0.1.1/24
loopback3, ipv4 address 2.0.2.2/24
Do not enable ISIS on those interfaces. The interfaces should be reachable from all routers. All routers except R2, should only have one (1) entry in routing table to reach those two prefixes.
4. Create two new loopback interfaces on R5.
loopback2, ipv6 address 2001:4:0:1::1/64
loopback3, ipv6 address 2001:4:0:2::2/64
Do not enable ISIS on those interfaces. The interfaces should be reachable from all routers. All routers except R5, should only have one (1) entry in routing table to reach those two prefixes.
3. Create two new loopback interfaces on R2.
loopback2, ipv4 address 2.0.1.1/24
loopback3, ipv4 address 2.0.2.2/24
Do not enable ISIS on those interfaces. The interfaces should be reachable from all routers. All routers except R2, should only have one (1) entry in routing table to reach those two prefixes.
4. Create two new loopback interfaces on R5.
loopback2, ipv6 address 2001:4:0:1::1/64
loopback3, ipv6 address 2001:4:0:2::2/64
Do not enable ISIS on those interfaces. The interfaces should be reachable from all routers. All routers except R5, should only have one (1) entry in routing table to reach those two prefixes.
Solution:
Highlight the text below to reveal the solution.
Requirement #1 & 2 - Use the existing ISIS process do distribute IPv4 and IPv6 routing information. Since all interfaces are configured with both IPv4 and IPv6 addresses, use "single-topology" to save CPU and memory resources.
Requirement #3 & 4 - redistribute connected interfaces into ISIS Level-2 and use summary-address.
!
interface Loopback0
ip address 11.0.1.1 255.255.255.255
ip router isis CCIE
ipv6 address 2001:11:0:1::1/64
ipv6 router isis CCIE
isis circuit-type level-2-only
!
interface Ethernet0/0
ip address 11.0.13.1 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:13::1/64
ipv6 router isis CCIE
isis circuit-type level-2-only
isis hello-interval 3
isis csnp-interval 5
!
interface Ethernet0/1
ip address 11.0.12.1 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:12::1/64
ipv6 router isis CCIE
isis circuit-type level-2-only
isis network point-to-point
!
interface Loopback0
ip address 11.0.4.4 255.255.255.255
ip router isis CCIE
ip ospf network point-to-point
ipv6 address 2001:11:0:4::4/64
ipv6 router isis CCIE
!
interface Ethernet0/0
ip address 11.0.45.4 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:45::4/64
isis circuit-type level-1
!
interface Ethernet0/1
ip address 11.0.24.4 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:24::4/64
ipv6 router isis CCIE
!
interface Ethernet0/2
ip address 11.0.47.4 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:47::4/64
ipv6 router isis CCIE
isis circuit-type level-1
!
interface Loopback0
ip address 11.0.6.6 255.255.255.255
ip router isis CCIE
ip ospf network point-to-point
ipv6 address 2001:11:0:6::6/64
ipv6 router isis CCIE
!
interface Ethernet0/0
ip address 11.0.67.6 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:67::6/64
ipv6 router isis CCIE
!
interface Ethernet0/1
ip address 11.0.46.6 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:46::6/64
ipv6 router isis CCIE
!
Requirement #1 & 2 - Use the existing ISIS process do distribute IPv4 and IPv6 routing information. Since all interfaces are configured with both IPv4 and IPv6 addresses, use "single-topology" to save CPU and memory resources.
Requirement #3 & 4 - redistribute connected interfaces into ISIS Level-2 and use summary-address.
R1:
!
interface Loopback0
ip address 11.0.1.1 255.255.255.255
ip router isis CCIE
ipv6 address 2001:11:0:1::1/64
ipv6 router isis CCIE
isis circuit-type level-2-only
!
interface Ethernet0/0
ip address 11.0.13.1 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:13::1/64
ipv6 router isis CCIE
isis circuit-type level-2-only
isis hello-interval 3
isis csnp-interval 5
!
interface Ethernet0/1
ip address 11.0.12.1 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:12::1/64
ipv6 router isis CCIE
isis circuit-type level-2-only
isis network point-to-point
!
!
interface Ethernet1/0
ip address 11.0.18.1 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:18::1/64
ipv6 router isis CCIE
isis password HPASS
!
!
router isis CCIE
net 49.0001.0000.0000.0001.00
authentication mode md5
authentication key-chain CHAIN level-2
metric-style wide
max-lsp-lifetime 65535
lsp-refresh-interval 65000
spf-interval 5 2750 2750
prc-interval 5 2750 2750
!
R2:
!
interface Loopback0
ip address 11.0.2.2 255.255.255.255
ip router isis CCIE
ipv6 address 2001:11:0:2::2/64
ipv6 router isis CCIE
isis circuit-type level-2-only
!
interface Loopback2
ip address 2.0.1.1 255.255.255.0
!
interface Loopback3
ip address 2.0.2.2 255.255.255.0
!
interface Ethernet0/0
ip address 11.0.23.2 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:23::2/64
ipv6 router isis CCIE
isis circuit-type level-2-only
isis priority 127
!
interface Ethernet0/1
ip address 11.0.12.2 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:12::2/64
ipv6 router isis CCIE
isis circuit-type level-2-only
isis network point-to-point
!
!
interface Ethernet1/0
ip address 11.0.24.2 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:24::2/64
ipv6 router isis CCIE
!
!
router isis CCIE
net 49.0001.0000.0000.0002.00
authentication mode md5
authentication key-chain CHAIN level-2
metric-style wide
max-lsp-lifetime 65535
lsp-refresh-interval 65000
spf-interval 5 2750 2750
prc-interval 5 2750 2750
summary-address 2.0.0.0 255.255.252.0
redistribute connected route-map CONNECTED_V4
!
!
ip prefix-list CONNECTED_V4 seq 5 permit 2.0.1.0/24
ip prefix-list CONNECTED_V4 seq 10 permit 2.0.2.0/24
!
route-map CONNECTED_V4 permit 100
match ip address prefix-list CONNECTED_V4
!
R3:
!
router isis CCIE
net 49.0001.0000.0000.0003.00
lsp-refresh-interval 65000
max-lsp-lifetime 65535
lsp-password keychain CHAIN level 2
address-family ipv4 unicast
metric-style wide
default-information originate
!
address-family ipv6 unicast
metric-style wide
single-topology
!
interface Loopback0
address-family ipv4 unicast
!
address-family ipv6 unicast
!
!
interface GigabitEthernet0/0/0/0
circuit-type level-2-only
priority 127
csnp-interval 5
hello-interval 3
address-family ipv4 unicast
!
address-family ipv6 unicast
!
!
interface GigabitEthernet0/0/0/1
circuit-type level-2-only
address-family ipv4 unicast
!
address-family ipv6 unicast
!
!
interface GigabitEthernet0/0/0/2
address-family ipv4 unicast
!
address-family ipv6 unicast
!
!
!
R4:
!interface Loopback0
ip address 11.0.4.4 255.255.255.255
ip router isis CCIE
ip ospf network point-to-point
ipv6 address 2001:11:0:4::4/64
ipv6 router isis CCIE
!
interface Ethernet0/0
ip address 11.0.45.4 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:45::4/64
isis circuit-type level-1
!
interface Ethernet0/1
ip address 11.0.24.4 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:24::4/64
ipv6 router isis CCIE
!
interface Ethernet0/2
ip address 11.0.47.4 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:47::4/64
ipv6 router isis CCIE
isis circuit-type level-1
!
!
interface Ethernet1/0
ip address 11.0.46.4 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:46::4/64
ipv6 router isis CCIE
isis circuit-type level-1
!
!
router isis CCIE
net 49.0003.0000.0000.0004.00
authentication mode text level-1
authentication mode md5 level-2
authentication key-chain CHAIN2 level-1
authentication key-chain CHAIN level-2
metric-style wide
max-lsp-lifetime 65535
lsp-refresh-interval 65000
spf-interval 5 2750 2750
prc-interval 5 2750 2750
redistribute isis ip level-2 into level-1 route-map LEAK
!
R5:
!
router isis CCIE
net 49.0003.0000.0000.0005.00
lsp-refresh-interval 65000
max-lsp-lifetime 65535
lsp-password text encrypted 047A39232E72 level 1
lsp-password keychain CHAIN level 2
address-family ipv4 unicast
metric-style wide
propagate level 2 into level 1 route-policy LEAK
!
address-family ipv6 unicast
metric-style wide
summary-prefix 2001:4::/62 level 2
single-topology
redistribute connected level-2 route-policy LOOPBACLS_V6
!
interface Loopback0
address-family ipv4 unicast
!
address-family ipv6 unicast
!
!
interface GigabitEthernet0/0/0/0
circuit-type level-1
address-family ipv4 unicast
!
address-family ipv6 unicast
!
!
interface GigabitEthernet0/0/0/1
circuit-type level-1
address-family ipv4 unicast
!
address-family ipv6 unicast
!
!
interface GigabitEthernet0/0/0/2
address-family ipv4 unicast
!
address-family ipv6 unicast
!
!
!
!
prefix-set LOOPBACKS_V6
2001:4:0:1::/64,
2001:4:0:2::/64
end-set
!
!
route-policy LOOPBACLS_V6
if destination in LOOPBACKS_V6 then
pass
endif
end-policy
!
R6:
!interface Loopback0
ip address 11.0.6.6 255.255.255.255
ip router isis CCIE
ip ospf network point-to-point
ipv6 address 2001:11:0:6::6/64
ipv6 router isis CCIE
!
interface Ethernet0/0
ip address 11.0.67.6 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:67::6/64
ipv6 router isis CCIE
!
interface Ethernet0/1
ip address 11.0.46.6 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:46::6/64
ipv6 router isis CCIE
!
!
router isis CCIE
net 49.0003.0000.0000.0006.00
is-type level-1
area-password AREA3 authenticate snp validate
metric-style wide
max-lsp-lifetime 65535
lsp-refresh-interval 65000
spf-interval 5 2750 2750
prc-interval 5 2750 2750
!
R7:
!
interface Loopback0
ip address 11.0.7.7 255.255.255.255
ip router isis CCIE
ip ospf network point-to-point
ipv6 address 2001:11:0:7::7/64
ipv6 router isis CCIE
!
interface Ethernet0/0
ip address 11.0.67.7 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:67::7/64
ipv6 router isis CCIE
!
interface Ethernet0/1
ip address 11.0.57.7 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:57::7/64
ipv6 router isis CCIE
!
interface Ethernet0/2
ip address 11.0.47.7 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:47::7/64
ipv6 router isis CCIE
!
!
router isis CCIE
net 49.0003.0000.0000.0007.00
is-type level-1
area-password AREA3 authenticate snp validate
metric-style wide
spf-interval 5 2750 2750
prc-interval 5 2750 2750
!
R8:
!
interface Loopback0
ip address 11.0.8.8 255.255.255.255
ip router isis CCIE
ip ospf network point-to-point
ipv6 address 2001:11:0:8::8/64
ipv6 router isis CCIE
!
interface Loopback16
ip address 11.0.16.16 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:16::16/64
ipv6 router isis CCIE
!
interface Loopback17
ip address 11.0.17.17 255.255.255.0
ip router isis CCIE
ipv6 address 2001:11:0:17::17/64
ipv6 router isis CCIE
!
interface Ethernet0/0
ip address 11.0.18.8 255.255.255.0
ip router isis CCIE
ip ospf network point-to-point
ip ospf demand-circuit
ipv6 address 2001:11:0:18::8/64
ipv6 router isis CCIE
isis password HPASS
!
!
router isis CCIE
net 49.0002.0000.0000.0008.00
authentication mode md5
authentication key-chain CHAIN level-2
metric-style wide
max-lsp-lifetime 65535
lsp-refresh-interval 65000
spf-interval 5 2750 2750
prc-interval 5 2750 2750
summary-address 11.0.16.0 255.255.254.0
!
Verification:
R8#sh ip route
Codes: L - local, 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, H - NHRP, l - LISP
+ - replicated route, % - next hop override
Gateway of last resort is 11.0.18.1 to network 0.0.0.0
i*L2 0.0.0.0/0 [115/20] via 11.0.18.1, 21:26:40, Ethernet0/0
2.0.0.0/22 is subnetted, 1 subnets
i L2 2.0.0.0 [115/20] via 11.0.18.1, 00:23:59, Ethernet0/0
11.0.0.0/8 is variably subnetted, 25 subnets, 3 masks
i L2 11.0.1.1/32 [115/20] via 11.0.18.1, 21:27:47, Ethernet0/0
i L2 11.0.2.2/32 [115/30] via 11.0.18.1, 21:27:39, Ethernet0/0
i L2 11.0.3.3/32 [115/30] via 11.0.18.1, 21:26:47, Ethernet0/0
i L2 11.0.4.4/32 [115/40] via 11.0.18.1, 21:27:27, Ethernet0/0
i L2 11.0.5.5/32 [115/40] via 11.0.18.1, 21:26:35, Ethernet0/0
i L2 11.0.6.6/32 [115/50] via 11.0.18.1, 21:27:08, Ethernet0/0
i L2 11.0.7.7/32 [115/50] via 11.0.18.1, 21:20:08, Ethernet0/0
C 11.0.8.8/32 is directly connected, Loopback0
i L2 11.0.12.0/24 [115/20] via 11.0.18.1, 21:27:47, Ethernet0/0
i L2 11.0.13.0/24 [115/20] via 11.0.18.1, 21:27:47, Ethernet0/0
i su 11.0.16.0/23 [115/10] via 0.0.0.0, 21:17:25, Null0
C 11.0.16.0/24 is directly connected, Loopback16
L 11.0.16.16/32 is directly connected, Loopback16
C 11.0.17.0/24 is directly connected, Loopback17
L 11.0.17.17/32 is directly connected, Loopback17
C 11.0.18.0/24 is directly connected, Ethernet0/0
L 11.0.18.8/32 is directly connected, Ethernet0/0
i L2 11.0.23.0/24 [115/30] via 11.0.18.1, 21:26:47, Ethernet0/0
i L2 11.0.24.0/24 [115/30] via 11.0.18.1, 21:27:39, Ethernet0/0
i L2 11.0.35.0/24 [115/30] via 11.0.18.1, 21:26:47, Ethernet0/0
i L2 11.0.45.0/24 [115/40] via 11.0.18.1, 21:26:25, Ethernet0/0
i L2 11.0.46.0/24 [115/40] via 11.0.18.1, 21:27:27, Ethernet0/0
i L2 11.0.47.0/24 [115/40] via 11.0.18.1, 21:27:27, Ethernet0/0
i L2 11.0.57.0/24 [115/40] via 11.0.18.1, 21:26:25, Ethernet0/0
i L2 11.0.67.0/24 [115/50] via 11.0.18.1, 21:20:08, Ethernet0/0
R8# sh ipv6 route
IPv6 Routing Table - default - 27 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP
H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO
ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect
O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2, l - LISP
I2 2001:4::/62 [115/30]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:1::/64 [115/20]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:2::/64 [115/30]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:3::/64 [115/30]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:4::/64 [115/40]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:5::/64 [115/40]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:6::/64 [115/50]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:7::/64 [115/50]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
C 2001:11:0:8::/64 [0/0]
via Loopback0, directly connected
L 2001:11:0:8::8/128 [0/0]
via Loopback0, receive
I2 2001:11:0:12::/64 [115/20]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:13::/64 [115/20]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
C 2001:11:0:16::/64 [0/0]
via Loopback16, directly connected
L 2001:11:0:16::16/128 [0/0]
via Loopback16, receive
C 2001:11:0:17::/64 [0/0]
via Loopback17, directly connected
L 2001:11:0:17::17/128 [0/0]
via Loopback17, receive
C 2001:11:0:18::/64 [0/0]
via Ethernet0/0, directly connected
L 2001:11:0:18::8/128 [0/0]
via Ethernet0/0, receive
I2 2001:11:0:23::/64 [115/30]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:24::/64 [115/30]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:35::/64 [115/30]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:45::/64 [115/40]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:46::/64 [115/40]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:47::/64 [115/40]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:57::/64 [115/40]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
I2 2001:11:0:67::/64 [115/50]
via FE80::A8BB:CCFF:FE00:601, Ethernet0/0
L FF00::/8 [0/0]
via Null0, receive
