If loopback addresses are used for source and destination addresses, the tunnel provides connectivity between the source and destination as long as there is any available route between the loopbacks. They create a logical path between each end point. We use cookies to give you the best personal experience on our website. Sir, i must say you made a mistake with the tittle of this entry. Here is a screenshot: You are commenting using your Facebook account. Router config-if tunnel source?

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Router2 config-if keepalive 5 2 Router2 config-if tunnel mode gre ip — this is the default mode on tunnel interfaces Router2 config-if ip address They create a logical path between each end point. Fill in your details below or click an icon to log in: But, it gives us an easy to remember IPv6 address that we can use to quickly test our tunnel.

August 16, at 2: You may cancel your monthly membership at any time. I only need two routers to demonstrate this. Router2 config interface tunnel 0 Router2 config-if tunnel source July 3, 12 Comments. October 26, at 7: Router1 config interface tunnel 0 Router1 config-if tunnel source Even if the normal egress interface were to go down, traffic across the tunnel could continue to flow, if there is a route to the tunnel destination in the routing table.


It is sometimes time consuming but just think of it as a moment to bond between you and your Persian cat. A default route will point to the next-hop Border Router ipv6 route:: By continuing to use this website, you agree to their use.

Each Border router will be configured with static routes to other sites!! We can take a look there…. R1 and R2 use IPv4 addresses on the Gigabit interfaces. I tunneing learnt one or two, especially the way you have arranged the addressing scheme. IPV6 is not enabled on this interface Rene.

Configuring IPv6-over-IPv4 Tunnels – TechLibrary – Juniper Networks

You are commenting using your Twitter account. Sorry, your blog cannot share posts by email. Because tunnels hide the network topology, the actual traffic path across a network is also unimportant to the traffic inside the tunnel. Explained As Simple As Possible.

Configuring IPv6-over-IPv4 Tunnels

Do not forget to enable IPv6 routing ipv6 unicast-routing! For instance, if some routers did not support IP multicast, the IP multicast traffic could be tunneled from one router tunnelint another using IP unicast packets.


The payload is first encapsulated in a GRE packet. You are commenting using your Facebook account.

In IP tunnelling, every IP packet, including tunnelihg information of its source and destination IP networks, is encapsulated within another packet format native to the transit network.

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This will make sure that when a physical interface fails your IGP will try to find another route to the loopback interface of your neighbor. August 11, at 9: Tunnel between BWest and BEast.

The tunnel can become a black-hole for packets directed into the tunnel from the side that did not have keepalives configured. Type escape sequence to abort. We will call this outer protocol the delivery protocol. North, East, and West are isolated IPv6 sites and connected with each other over an IPv4 network with their respective border routers dual-stack.