Now let's have a look at the running configuration on router one.
The first thing I'll show you is the configuration on this interface, and let's compare that to the
configuration on gigabit zero zero on router two.
So IP address of right of one IP address of router two, we can see the OSPF password configured on
both routers.
We can see the OSPF properties configured default priority is one.
In this case I set it manually and then what I'll do is search for the OSPF configuration.
So show run pipe section OSPF that will show us the configuration of the OSPF process.
Now we are seeing those OSPF commands on the interface over there.
So this is the piece I want to concentrate on.
Process numbers can be different once again, that doesn't matter, but notice we've got authentication
on Area Zero.
That essentially means that this password over here needs to be the same as this password over here.
You can set passwords differently on a per interface basis.
But yeah, we've got the passwords on those two interfaces, not on other interfaces.
Those two interfaces are in Area zero.
So authentication is configured on Area Zero.
On this side, all interfaces using a wild card are put into area zero.
On the side, all interfaces in the ten range are put into area zero.
We can see there once again by using the command show IP, OSPF interface brief.
So show IP OSPF interface brief.
We can see here that both these interfaces on area zero on router two, same is true on the side.
Both interfaces gigabit 0001 on both routers on area zero.
So just by using Wireshark, you can actually work out a lot of this information.
This proves, however, that what I was telling you in the Wireshark capture is correct.
I hope you enjoying this.