Okay, I'm going to go ahead and clear my I p Nat translations for from our previous lab
and let's see if they were actually cleared with the show. I mean that
I'm going to make sure PC three's address is 10 10 10 3 which is not,
if you remember, are rather owner Stick lab. He she
three's um I P address was 2020 23. Let's
put that in the 10 Network and change our T fall gateway to Jin Jin 10 to 54
Now, let's just do some preliminary testing To make sure this worked. I'd be config
slash all check the I p
and my P addresses tensions and three and my default gateways. 10 10 10 to 54
That's paying the default Gateway.
The first ping should time out for the art request reply process, and then it should start pinging.
No, actually, it is not going to because we have to change the switch
and put this switch port in villain zero slash torreon villain
10 instead of villain 20.
So if you look at my switch Sure. Villain brief.
You see that zeroes? Last three right now belongs to Dillon 20. Let's change that over
into you. Fast it in that zero slack. Three. Which port? Access villain 10.
back and type. This would be easier.
Okay, So sweets now poor tree has been moved over to Bill and 10
BC three should now be able to ping.
As you see, guys, when you make these changes, be aware of your layer to also.
So the first thing should time out now and then it should start pinging
if Packet Tracer is going to be kind to me.
And there we go. The 1st 2 timed out, but now it's pinging.
Now I am going to translate pc three,
I'm gonna pick the first address and translated to 1 90 10 10 1
So let's go into outer to I could say it 1 90 10 10 3 But I want to show you something. Aside from static, Matt, I want to show you that if you if I pick if I translate 10 10 10 3 toe 1 90 10 10 1 then when Router
go out to the outside world. The router is router to is basically going to pick the next available address, which is going to be two and 31 90 10 10 2 and one. I need
So the commands in text for static net is I p nat
So I mean that inside source static.
If I say question mark, it is asking me for the inside or the local address.
So I'm going to say Can 10 10 3 which is PC three's address
my global address, which the address router to is going to translate to, and I'm going to pick 1 90
is always going to be translated to 1 90 10 10 1
Let's look at our translation table show. I pee in that
I didn't have to pass traffic
before. I see translations in my table because 1 90 10 10 10 10 10 3 is always going to be translated to 1 90 10 10 1
So I should now in theory be able to
tell that to 1 90 10 10 1 and I should be. That should tell. Met me, too.
PC three, which is 10 10 10 3
Screwed around or four and try this.
I'm going to tell that
and it's his connection refused by remote toast. Let's try pinging
and I can ping 1 90 10 10 1
So I don't know why I did not let me tell that
I have to create a talent password on router to also because router To is going to be the router for any inbound. Tell that connections to PC three router to is going to actually intercept those connections
or terminate those connections and then create a separate connection to PC three. So router to needs
tell that access enabled on itself. So line B T ry zero space 15
Let's check Router four. Let's try and tell that again
from Router four to P. C. One
using PC ones Global address
and it still won't let me. So
maybe this is a packet tracer thing. I will simply ping to test this paying 1 90 10 Let's do an extended ping type in Ping.
You recall i p to target i p addresses 1 90 10 10 1
Repeat, can I'm just going to set it to 500 so my translation table doesn't time out, and I'm constantly sending traffic,
and I'm going to constantly be pinging from outer one
router to still has the translation table.
And now, as you see,
10 10 10 3 is constantly being translated to 1 90 10 10 1
And with every ping, I'm going to get a translation.
And if you see my first through, translations actually did happen. 10 10 10 3 did get translated to
10 10 10 and 1 90 10 10 10 10 1 And it was a TCP
tell that connection
So even though a packet tracer had a bug in it and did not show us that the tell it was actually happening router to still did perform the translations.
Now, at this point, if I
and I tell it to router four
and I'm inside a rattle for
on from PC to I'm going to tell that to router four and I'm in route or four
if I check my translation tables on
router to again. Now we saw that PC three
or out or two is translating
the 1 90 10 10 1 address
to which we're sending. The pain's, too,
from Router Force A Router four is always translating to the 10 10 10
What if PC one and PC to try to Ping Router for Also,
And if I check my translation table
and PC three PC to NPC Win one are still picking the 10.1 address, which means I am not sending any more pains from router for Let's restart our pings from router for
to the one I need 10 not 10 not one address.
Repeat count will make it 1000 this time.
And now let's ping from P C. One
and I have to do this quick before this time's out
and I'm gonna ping again from pc to
if I check my translation table on router to
so as we see PC three
are when somebody from the outside world uses that 1 90 10 10 1 address
to send traffic inbound towards PC three router to always translates to the 10 10 10 3 address because that is hard coded into round two to statically change with 1 90 10 10 1 address. Always through the 10 10 10 3 address and lice versa.
This concludes our static night lecture.