E17 Welcome to the Internet I'll be your guide

These videos are still in Finnish

Video: Instructions for E17

3 different options to complete the exercise

All are of same value, thus select which one you will do.

Based on your options, your topology is one of the following (click the tabs):

Option 1Option 2Option 3

Based on your options, your assignment is one of the following (click the tabs):

Option 1Option 2Option 3

Investigate your home network (or LabraNet classroom) IPv4 address range.
Update its information to your logical topology
Change your R3 adapter (previously "public") to "Bridged Interface"
Update the IPv4 configuration of the Interface
- Make sure your NAT configuration is set towards the bridged interface
Make a default route on R3, set protocols static route 0.0.0.0/0 next-hop <home/labranet router IPv4 address> towards the "Internet"
- Use the command set protocols ospf default-information originate metric-type 2 on R3, commit, save and reboot the device (unfortunately this requires a reboot :()
Update your DHCP servers (on all the Routers) to have the DNS server option: set service dhcp-server shared-network-name <name> subnet <subnet> dns-server 1.1.1.1
Test your connectivity to the Internet on Lubuntu VM through ping and traceroute (e.g. to www.jamk.fi or 8.8.8.8) and you can maybe even browse the world-wide-web(!?)
Document the results

Make sure you and your comrade are on the same Local Area Network (e.g. LabraNet Classroom)
Change both your R3 adapters (previously "public") to "Bridged Interface"
- Agree on a public IPv4 subnet & addresses to be used
Make a BGP neighborship by using your student numbers as AS numbers
- long student number -> use the whole student number (e.g. 2001234 -> AS 2001234)
- short student number -> use only the numbers and discard the letter (e.g. AA1234 -> AS 1234)
Redistribute all of your OSPF networks to each other through BGP
Verify that your routes are being received on both R3's
Investigate the bgp show commands on what are the metrics to each of the subnets
Investigate the traffic between your topologies by ping and traceroute
Document the results to the repository

Tip: You can have as many friends in the BGP as you want

It just requires more configuration, based on your BGP topology

Danger: step 4 FYI

I know private IPv4 subnet advertisement through BGP isn't best practice, but this isn't the Internet

We are just studying how to interconnect two exercise networks to one another

Import BGP_vyos from this link
- Include all the MAC addresses of adapters
- If you fail this, change the MAC of the Adapter1 to: 080027fc19cb
Change your R3 adapter (previously "public") to "Internal Network/BGP_network"
- Use the IPv4 address 195.148.26.2/24 on your R3
- You can verify on that device that you can reach 195.148.26.1 through ping
Make a BGP neighborship with BGP_vyos by using your student numbers as AS numbers
- You will have to update BGP_vyos on `set protocols bgp 65001 neighbor 195.148.26.2 remote-as
- The username & password is the one we are used to on the course
Redistribute all of your OSPF networks on your R3 to your BGP AS <student number>
Verify that your routes are being received on both routers
Investigate the bgp show commands on what are the metrics to each of the subnets
Investigate the traffic between your topologies by ping and traceroute to
- 11.104.8.1
- 11.201.203.1
- 11.157.1.0
Document the results to the repository

Danger: step 4 FYI

I know private IPv4 subnet advertisement through BGP isn't best practice, but this isn't the Internet

We are just studying how to interconnect two exercise networks to one another