So Ken wrote a one ping rate of five.
So ping tended one to 2 to 2.
At the moment, the pings are failing.
So let's do a traceroute to 10.1 or 2 to 2.
So we get to 10.101 or two, which is rather two, and then things seem to stop working.
Let's do a debug IP ICMP.
And try and ping.
REPORTER five again.
Nothing seems to be happening.
So let's check on rather to what the IP routing table looks like.
We can see network 4.1.1.0.
We can in other words, this network we can see network 10.1 or 3.0.
In other words, this network we can see network ten .1.1.0.
In other words, this network, we have a default route to router three.
But remember that rather three doesn't have visibility of this network.
If rather two forwards of that traffic to router three, it's going to go nowhere.
So what we need to do is we need to run a routing protocol on router two and router four so that this
network is advertised to router two through the tunnel.
So that router two forwards traffic to router five through the tunnel of via router four.
So we should enable it some kind of writing protocol.
I'm going to enable ERP to keep it simple.
The network that I'll enable is Network ten.
So in other words, I'm not going to enable IGP on the serial interface.
It's going to be enabled on the first Ethernet and tunnel interfaces only.
I'll disable auto summarization to show IP IGP interfaces.
Shows me that IGP is running on Fast Ethernet zero zero and the tunnel interface.
It's not running on the serial interface.
On Router four, we can do something similar cerrado IGP 100 Network 10.02020 no order summary and notice
as soon as I did that a neighbor relationship was established to neighbor 10.1 to 3.1.
A resync was made after I enabled no order summary to that neighbor.
So once again, show IP ERP interfaces shows that IGP is enabled on fast Ethernet zero zero as well
as the tunnel interface show IP dropping neighbors.
We can see an IGP neighbor ten .1.3.1 directly connected through tunnel zero.
The point is, and forgive the pun, this is a point to point link.
So logically router two and router four are directly connected to each other and IGP sees them as directly
connected neighbors.
So in order to show IP route.
We now see a route to 10.1 or 2.0 slash 24 via tunnel zero.
This was learnt through escape from neighbour 10.1 or 3.2.
Rather to now has visibility of this network so can write a one ping route of five.
There was a slight time out, but notice the ping now succeeds and we can see the output in the debug.
We received an echo reply en route of five just to make the point debug ip, icmp or ping from router
one once again and notice the ping succeeds, we can see the output.
So we've now successfully configured a jury tunnel from router to two out of four and router one can
ping root of five.
But remember router three has no visibility of the networks.
Rather three only sees Network 4.1.1.0 and Network 4.122.0.
It has no visibility of this network ten 110 or this network ten 120.
So let's look at some of the show commands available for grid tunnels and do some additional Wireshark
captures.