After a long reading, I was able to do a lab which contains some layer 7 services, also the networks are connected via BGP (due some packet tracer limitations, it will not perform as expected).

Here are the conditions of this lab:

  1. Both networks should be connected via a BGP mesh
  2. a DHCP service should be enabled in one of the networks
  3. Both networks should be have a DNS server (Due some packet tracer limitations, the DNS is lightly implemented)
  4. Port Security must be enabled with Sticky mac addresses
  5. Unused switch ports must be disabled.
Two networks connected via BGP, Layer 7 services are offered in each network

Take a look at the lab

Now here are some fun stuff that you can do:

  1. You can do nslookup on each networks (Packet tracer DNS support is limited to one network)
  2. DHCP Clients can be unplugged at any time. They will re-obtain the IP configuration back once they are connected to the switch again.
  3. Port Security is enabled on each Switch port. All current mac addresses are associated to each port permanently, as soon you connect a different end device with a different MAC address, the switch will shutdown the port.
  4.  At the Internet cloud, you can unplug cables and the routers will recalculate the best routes automatically, do it with the cable between BGP1 and BGP2 and you will see a lot of action.
  5. Layer 3 connectivity is available at both networks.

Console/Telnet pass: cisco

enable pass: class


Download the lab here.

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Carlos Alberto Umanzor Arguedas

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Web Developer, QA Engineer and Gamer Enthusiast, Developer of Linkcrawler and Father of a future computer ninja.
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