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In this practical lab we'll take a look to the access.
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This configuration we are two others two surveys and two pieces in our lab.
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In the first step let us saying that cover your piece you want a piece it too with proper default it
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pays OK and for the second step we need to call for you an extended access list and provide that.
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P.S. One can't reach the FTB talent and the DP Ports of P.S. 2 and we should also Ello for any other
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terrific.
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All right let's go.
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So what I need to do is
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first we need to configure P.S. 1 and P.S. 2 with proper default gateways.
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As you can see that in the year PCI wants default gateway is here.
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So I should use this IP address for PCI once Gateway and I should use to that one as the default courtesy
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of the P.C. to that's got to the packet tracer packet res or Tor.
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Oh you go
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I need to close this so you can focus better.
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OK
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I'm going to the first P.S. And checking the IP configuration and my default gateway will be one that
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one and I'm going to the second
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desktop IP config
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true that one
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Oh to the 6.
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Now do that one.
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All right I accomplished my first step and let's take a look to the second step now.
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In the second step I need to call for you and extend the access list and provide that.
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P.S. one can reach the NDP telnet and A.S.A.P. ports of P.C. to so P.S. 1 is my source.
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P.S. 2 is my destination as you can remember from our sessions extended access lists are written to
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the closest rather to our source.
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So I'm going to use them.
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I'm going to configure an ACL on rather one which blocks the traffic for FTB telnet and H2 to prepare
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the course coming from P.S. 1 and destined to P.S. To All right.
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Let's go
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I'm going into the rather one
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enable first right.
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Quality
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and let's configure our access list access list.
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I'm going to use a question mark as you can see that we have different grants that we can use for standard
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or X extended access list because of I'm going to use extended access lists.
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I'll use this range and this number right but I'm gonna do is I'm gonna deny some traffics right.
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Deny
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my protocols are working DCP so I'm gonna deny the TCB traffic now a question mark so the first thing
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is I need to write my host address for source address.
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OK I'm defining my source address.
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I can use the IP address of my P.C. and be the wild card of 0 0 0 0.
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But instead of this I can use just host command features easier.
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Okay DCP host what is the IP address of my source term for the 1 1 5 down for the 1 1 5.
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Okay.
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And another question mark I need to define my destination address to my destination IP address is a
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single host again.
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10 for the 1 2 6
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host 10 4 2 1 2 6 Politico and I'm going to match a given port number using the E 2 Q L and command
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e q and I have another question mark I can't define the port numbers by using these numbers are I can
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use the names of the protocols as well.
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For simplicity I'm going to use the typing the port and search protocol names.
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I'm going to deny if DP I'm gonna deny tell that and I'm gonna deny H to DP which means w w w
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o k pretty cool.
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The next step is I need the permit.
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Any other traffic OK because my ACL.
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I should write at least one permit statement please remember that OK access lists 100 permit IP any
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any permit and IP traffic.
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Okay I'm permitting anything other than I denied.
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Above OK.
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That's cool but mission is not accomplished I created my access list correctly but I need to implement
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my access list to the related interface.
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From inbound or outbound in here underlying the traffic of P.S. 1 so I can implement my ACL to this
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interface inbound while packets coming from this P.C. to the these interface first and so one I block
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this traffic OK.
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No I need to go through the fast designs that one
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first 01 interface first.
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0 1 and I'm using IP access group the number of my ACL and in or out in this scenario I'm going to use
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an inbound
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OK.
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Pretty cool I can refine my configuration using show axis.
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This command and I can take a brief look to what I'm denying and what I am permitting for and that's
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it.
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OK.
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We have completed our configuration lap and everything was fine thanks for weaving.
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See you in the next session guys.
7013
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