Схема:
Задача:
Настроить NHRP-туннели между маршрутизатором ESR-Spoke и маршрутизаторами Cisco-HUB и Cisco-Spoke. В качестве динамической маршрутизации необходимо настроить OSPF.
Cisco-HUB:
1) Конфигурация:
interface Tunnel1 ip address 10.10.10.1 255.255.255.0 no ip redirects ip mtu 1472 ip nhrp authentication password ip nhrp map multicast dynamic ip nhrp network-id 60 ip nhrp holdtime 360 ip nhrp registration no-unique ip nhrp registration timeout 60 ip tcp adjust-mss 1432 ip ospf network broadcast ip ospf priority 255 tunnel source Ethernet0/0 tunnel mode gre multipoint tunnel key 60 ! ! interface Ethernet0/0 ip address 192.0.2.2 255.255.255.0 ! ! router ospf 1 router-id 10.10.10.1 log-adjacency-changes auto-cost reference-bandwidth 10000 network 10.10.10.1 0.0.0.0 area 0 ! ip route 192.0.4.0 255.255.255.0 192.0.2.1 ip route 192.168.32.0 255.255.240.0 192.0.2.1
2) Информация о состоянии протоколов OSPF и NHRP:
Router#show ip nhrp 10.10.10.2/32 via 10.10.10.2 Tunnel1 created 01:18:10, expire 00:05:14 Type: dynamic, Flags: registered NBMA address: 192.0.4.2 10.10.10.3/32 via 10.10.10.3 Tunnel1 created 01:04:52, expire 00:05:44 Type: dynamic, Flags: unique registered NBMA address: 192.168.39.216 Router#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 10.10.10.2 1 FULL/DROTHER 00:00:34 10.10.10.2 Tunnel1 10.10.10.3 128 FULL/DR 00:00:31 10.10.10.3 Tunnel1
ESR-Spoke:
1) Конфигурация
esr# show running-config router ospf log-adjacency-changes router ospf 1 router-id 10.10.10.3 area 0.0.0.0 enable exit enable exit interface gigabitethernet 1/0/1 ip firewall disable ip address 192.168.39.216/20 exit tunnel gre 1 key 60 ttl 30 mtu 1472 multipoint ip firewall disable local interface gigabitethernet 1/0/1 ip address 10.10.10.3/24 ip ospf instance 1 ip ospf ip tcp adjust-mss 1432 ip nhrp authentication password ip nhrp holding-time 360 ip nhrp map 10.10.10.1 192.0.2.2 ip nhrp nhs 10.10.10.1/24 ip nhrp multicast nhs ip nhrp enable enable exit ip route 192.0.2.0/24 192.168.39.215 ip route 192.0.4.0/24 192.168.39.215
2) Информация о состоянии протоколов OSPF и NHRP:
esr# show ip ospf neighbors
Router ID Pri State DTime Interface Router IP
--------- --- ----- ----- ----------------- ---------
10.10.10.1 255 Full/BDR 00:36 gre 1 10.10.10.1
esr# show ip nhrp
Tunnel address NBMA address Interface Peer type Expire Created Flags
---------------- ---------------- --------- --------------- --------- ---------- ---------
10.10.10.1 192.0.2.2 gre 1 static -- -- register,
lower-up,
up
10.10.10.2 192.0.4.2 gre 1 cached 0:05:49 00:00:10 used,
lower-up,
up
Cisco-Spoke:
1) Конфигурация:
interface Tunnel1 ip address 10.10.10.2 255.255.255.0 no ip redirects ip mtu 1472 ip nhrp authentication password ip nhrp map 10.10.10.1 192.0.2.2 ip nhrp map multicast 192.0.2.2 ip nhrp network-id 60 ip nhrp holdtime 360 ip nhrp nhs 10.10.10.1 ip nhrp registration no-unique ip nhrp registration timeout 60 ip tcp adjust-mss 1432 ip ospf network broadcast tunnel source Ethernet0/0 tunnel mode gre multipoint tunnel key 60 ! ! interface Ethernet0/0 ip address 192.0.4.2 255.255.255.0 ! ! router ospf 1 router-id 10.10.10.2 log-adjacency-changes auto-cost reference-bandwidth 10000 network 10.10.10.2 0.0.0.0 area 0 ! ! ip route 192.0.2.0 255.255.255.0 192.0.4.1 ip route 192.168.32.0 255.255.240.0 192.0.4.1
2) Информация о состоянии протоколов OSPF и NHRP:
Router#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 10.10.10.1 255 FULL/DR 00:00:31 10.10.10.1 Tunnel1 Router#show ip nhrp 10.10.10.1/32 via 10.10.10.1 Tunnel1 created 01:36:26, never expire Type: static, Flags: used NBMA address: 192.0.2.2 10.10.10.2/32 via 10.10.10.2 Tunnel1 created 00:01:00, expire 00:04:59 Type: dynamic, Flags: router unique local NBMA address: 192.0.4.2 (no-socket) 10.10.10.3/32 via 10.10.10.3 Tunnel1 created 00:01:00, expire 00:04:59 Type: dynamic, Flags: router NBMA address: 192.168.39.216