Upgrading MetroIX Ubiquiti routers
Valkonen, Miika (2018)
Metropolia Ammattikorkeakoulu
2018
Creative Commons Attribution-NonCommercial 1.0 Suomi
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-201805137857
https://urn.fi/URN:NBN:fi:amk-201805137857
Tiivistelmä
The purpose of this thesis was to upgrade the Ubiquiti routers in Metropolia’s lab network called MetroIX and to create a basis for documentation of the network. The thesis was divided into three main parts.
Firstly, a previous software upgrade attempt had failed for an unknown reason and this needed to be troubleshooted. Once the problem had been resolved the software was to be upgraded to the newest release available at the time. The problem turned out to be a memory leak in BGP multipathing and was resolved by disabling it until it gets patched in a newer release.
Secondly, the lab network is missing any kind of documentation of the network, making it very hard for anyone new to start making changes. As a result, two network diagrams were drawn, both before and after the changes made in this thesis. Additionally, other crucial elements of documentation were considered, but none are currently implemented. These include login credentials and setting up an external log server, which could also hold backups of the configurations.
Lastly, once the software had been upgraded and a network diagram had been drawn, the network was to be upgraded to use IPv6 side-by-side its existing IPv4 configuration. This meant subnetting an IPv6 global routing prefix assigned to Metropolia, configuring the interfaces to use the IPv6 addresses, and setting up BGP and OSPFv3 sessions between the Ubiquiti routers using their IPv6 addresses. Once the internal network was up and running, the ISP was contacted to set up BGP peering with their gateway router so that the whole IPv6 routing table of the internet could be added to the Ubiquiti routers’ routing table.
Firstly, a previous software upgrade attempt had failed for an unknown reason and this needed to be troubleshooted. Once the problem had been resolved the software was to be upgraded to the newest release available at the time. The problem turned out to be a memory leak in BGP multipathing and was resolved by disabling it until it gets patched in a newer release.
Secondly, the lab network is missing any kind of documentation of the network, making it very hard for anyone new to start making changes. As a result, two network diagrams were drawn, both before and after the changes made in this thesis. Additionally, other crucial elements of documentation were considered, but none are currently implemented. These include login credentials and setting up an external log server, which could also hold backups of the configurations.
Lastly, once the software had been upgraded and a network diagram had been drawn, the network was to be upgraded to use IPv6 side-by-side its existing IPv4 configuration. This meant subnetting an IPv6 global routing prefix assigned to Metropolia, configuring the interfaces to use the IPv6 addresses, and setting up BGP and OSPFv3 sessions between the Ubiquiti routers using their IPv6 addresses. Once the internal network was up and running, the ISP was contacted to set up BGP peering with their gateway router so that the whole IPv6 routing table of the internet could be added to the Ubiquiti routers’ routing table.