All language subtitles for 5. Subnetting Lab 1 Answers Part 4

So on the subnet 1 9 2 1 6 8 1 128 to slash 26.

We've been told to configure the Rada with the lost IP address in the subnet.

Now the next subnet is one ninety two.

So the broadcast address for the subnet will be 191 which means that this writer can be configured with

one ninety.

Have a look at the previous videos in this series.

If you're not sure how I worked that out so IP address 1 9 2 1 6 8 1 1 only 2 is the next subnet one

only 1 is the broadcast one ninety is the lost IP address in the subnet subnet mask is that and we know

that from our previous calculations the switch needs to use the second IP address in the subnet the

right is configured with one 90 so the switch I'll change the name to switch to will simply use IP address

1 point 2 1 6 8 1 1 89 so 1 less than the router

shutter the interface so ping 1 9 2 1 6 8 1 1 89.

That's our local IP address.

Can we ping the router.

Yes we can.

I'll also configure a default gateway on the switch pointing to the router switch as configured so the

switch once again is using one eighty nine.

The DNS server should use 188

one less than the switch so static IP address of the DHB server is 1 8 2 1 6 8 1 88 public mask is 255

255 192 default gateway is the router 1 9 2 1 6 8 1 1 90 again that's the IP address of the router DNS

server will be Google.

So on the server can we ping the router type that right.

Yes we can.

Can we ping the switch.

Yes we can.

Can we.

Paying the DNS server.

Not at the moment because we need to configure the serial interface of the router.

But now let's configure the DHB server so DCP will enable the DHB service default gateway is going to

be one ninety two so 1 so 1 8 2 1 6 8 1 1 Ninety DNS server is Google IP addresses that will allocate

all 1 9 2 1 6 8 1.

Now you need to be careful.

The first host is one more then the subnet so it's 1 twenty.

Maximum number of hosts.

I'll allocate is 50 and I'll save that configuration.

You could allocate more IP addresses in your pool or less if you wanted to so.

So for instance only allocate 10 just depends how many IP addresses in your subnet you want to have

for static IP addresses.

How many IP addresses you want for dynamic IP addresses so on the P.C. IP config IP address has been

allocated.

Ping 1 9 2 1 6 8 1 1 90.

That's the Rada.

That's the switch that's the DNS server.

What about PCI 5.

Just do one more here.

IP config IP address has been allocated.

So can we ping the Rada.

Yes we can.

What about switch.

Yes we can.

What about DNS server.

Yes we can.

We won't be able to ping 1 9 2 1 6 8 1 to 1.

P.S. And the other subnet because we still need to configure this serial link so let's configure the

serial link the IP address of this rather on the serial interface is gonna be one more than the subnet

so show IP interface brief.

This serial interface needs to be configured with IP address 1 8 2 1 6 8 1 subnet is 1 only 2.

So first ip address will be 1 93 with that subnet mosque.

So can we ping 1 or 2 1 6 8 1 93.

It won't work at this point because we need to configure the other side so on this rather show IP interface

brief we still need to configure the search interface it's currently down so no shut to that IP address

will be 1 9 2 1 6 8 1 and this is a little bit more difficult to work out the broadcast for the subnet.

Again you just populate the host portion with binary ones and what you'll notice is it's full of ones.

So that would equal 255 but one less than the broadcast is 254.

So 254 subnet mask is that no shut to the interface again to show IP interface brief according to this

it's still down.

Let's make sure that I've configured it right.

Show IP interface brief

may have connected the wrong serial interface in this network and that looks like what I've done wrong

serial interface.

So what I'll do is delete that serial interface.

I'll fix it in your lab so you don't have that problem.

So that serial should be connected to that serial so show IP interface brief this interface is up up

so can we ping 1 9 2 1 6 8 1 2 5 4.

Yes we can.

So write too can ping the Internet router so hopefully these pieces can now paying the Internet which

they can notice they can ping Cisco dot com as an example and they can paying Facebook a dot com.

So going to the web browser on P.S. 3 can this P.C. get to Cisco dot com.

Yes it can.

Can it get to Facebook dot com.

Yes it can.

What about P.C. 5 web browser on P.C. 5.

Can we get to Cisco dot com.

Yes We Can.

Can we get to Facebook dot com.

Yes we can.

We can access these servers on the Internet.

We've had to do quite a lot here as a lost test.

Can the pieces in the one subnet ping pieces in the other subnet so can we ping one on 2 1 6 8 wandered

1.

Yes we can.

What about 1 to 2.

Yes we can.

And if we trace to that we are essentially sending traffic to rather 2 event invented the Internet rather

than to write a one and then to the P.C. in the other subnet.

Okay so this was quite a complex lab we had to do a lot of things here but I'm hoping it's helped you

understand subediting and way you use updating and how to use submitting in a practical lab.