networking n stuff

Monday, July 23, 2018

IPv6 Lab: ISP & Client Side using Linux and Cisco

So I got really tired of reading about some basic IPv6  stuff and then forgetting it in a couple of months due to lack of practice and decided to set up a lab, which will contain both ISP and client sides.
This is what my topology will look like:

Components used:
  • Client_PC: Linux box with Ubuntu Server 18.04 installed with rdnssd (which is required to receive list of DNS servers via RA);
  • Home_Router: Linux box with Ubuntu Server 18.04 installed with wide-dhcpv6-client and radvd. (I had to install wide-dhcpv6-client, cause isc-dhcp-client, which comes by default, barely has any decent documentation and I wasn't even able to find out if it supports some of the features we're going to use in this lab);
  • ISP_R1: Cisco C7200 15.2(4)S6. It's used as DHCPv6 server as well.
How I'm going to assign IPv6 addresses to devices (I'll cover the details of different ways to achieve this further)
  • Client_PC: no DHCPv6 at all, only Stateless Address Autoconfiguration
  • Home_Router: DHCPv6.