example config multipoint-gre tunnel with cisco router tra un PE e due CE

 

ARCHITETTURA DI RIFERIMENTO

 

mgre tunnel cisco

 

PE router


interface tunnel1

description NHS GRE vs CE

ip address 172.16.201.10 255.255.255.248

ip mtu 1500

no ip route-cache

no ip mroute-cache

tunnel mode gre multipoint

ip nhrp map 172.16.201.9 172.16.201.200               # map  < ip_tunnel1 NHC > < loopback NHC-CE1 >

ip nhrp map 172.16.201.11 172.16.201.100             # map  < ip_tunnel2 NHC > < loopback NHC-CE2 >

ip nhrp network-id 1

ip nhrp holdtime 65535

ip nhrp nhs 172.16.201.9

ip nhrp nhs 172.16.201.11

tunnel source 172.16.201.253

tunnel key 1

 

 

CE1


interface tunnel1

description NHC GRE1 vs PE

router ip address 172.16.201.9 255.255.255.248

ip mtu 1500

no ip route-cache

no ip mroute-cache

tunnel mode gre multipoint

ip nhrp map 172.16.201.10 172.16.201.253                   # map  < ip_tunnel1 NHS > < loopback NHS-PE >

ip nhrp network-id 1

ip nhrp holdtime 65535

ip nhrp nhs 172.16.201.10

tunnel source 172.16.201.200

tunnel key 1

 

 

 

CE2

 

interface tunnel1

description NHC GRE2 vs PE

ip address 172.16.201.11 255.255.255.248

ip mtu 1500

no ip route-cache

no ip mroute-cache

tunnel mode gre multipoint

ip nhrp map 172.16.201.10 172.16.201.253                 # map < ip_tunnel2 NHS > < loopback NHS-PE >

ip nhrp network-id 1

ip nhrp holdtime 65535

ip nhrp nhs 172.16.201.10

tunnel source 172.16.201.100

tunnel key 1