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Basic cisco packet tracer tutorial code#
Basic cisco packet tracer tutorial password#
Basic cisco packet tracer tutorial download#

Basic cisco packet tracer tutorial code#

1Ĭlass- map CMAP match default- inspection- traffic exit policy- map PMAP class CMAP inspect dns inspect ftp inspect http inspect icmp exit service- policy PMAP global end write memory Code language: JavaScript ( javascript ) The only ports that should be trusted are the connections from the switch to the DHCP server and switch to switch connections. This prevents attackers from modifying DHCP traffic to manipulate it’s dynamic abilities to gain network access. It helps identify anomalies in the DHCP DORA (Discover, Offer, Request, Acknowledgement) request process and drops improper requests. This feature monitors and facilitates messages for a DHCP server. Refer to the Internal FTP configuration above Verify configs:īefore moving on to configuring the DMZ lets set a few more layer 2 LAN security controls.

Open a browser on an end host in Internal or External zones and connect to.

In the services tab, confirm email service is on, set the domain-name to, and add the following:Ĭonfirm service is enabled for http/https. There is no need to configure, but here are the commands for reference: Normally timestamps need to be set but that was already taken care of in base configurations for all devices. On NTP server:Ĭonfirm service is activated On Internal: NTP should be configured first considering that Syslog would be rendered useless without it. Syslog will utilize NTP to facilitate log messages to a server for all devices in the private network. NTP will synchronize system clocks of the network devices in the private network. NTP & Syslog will be configured on Internal, which will provide logging auditability.

Open command prompt on an end host in the Internal zone.

Basic cisco packet tracer tutorial password#

Obviously, in an actual scenario, significantly stronger passwords should be used.įor the time being let’s ignore password security and just focus on the protocols. Select all access interfaces and assign uniform commands.Assign unused ports to Black_Hole vlan and shut them off.Take care of all the uniform commands that apply to all interfaces in that range then apply interface specific commands like switchport access vlan. My recommended strategy is to configure the trunk and access ports in separate ranges. This helps create segmentation as well as access control when ACLs are applied. The vlan design is relatively simple with worker, technician, and separate vlans for various servers.

Lets start out by assigning end hosts to the appropriate vlan and securing physical interfaces. These steps are covered in my tutorial called Project: Using Cisco Packet Tracer to learn networking.

Ctrl + e -> Moves cursor to the end of the lineīase configurations (Environment, Vlans, IP addressing, inter-vlan to static routing) are already set up except the firewall.

Ctrl + a -> Moves cursor to the beginning of line.

The question mark can be used for ANY positional parameter to see available command options.

If devices have passwords my defaults are:

PKT files can be opened with Packet Tracer by Cisco. The first is the base to work from, while the second is so you can see the finished setup and compare with yours. This tutorial includes 2 downloadable pkt files which you can access here:

Basic cisco packet tracer tutorial download#

Download files for Packet TracerĪll files used in this tutorial can be viewed and downloaded here. If some of these terms seem foreign, spend some time researching them and at least know their basic purpose in a network before proceeding.Īn extensive in-depth knowledge is not required to at least start configuring and see how these protocols work in action.

Firewall configuration – DMZ setup with static routes.

This design strategy is a perfect example of significantly increasing security through network segmentation. Think of Internal and DMZ together as being our private network.