Absolutely nothing has been as helpful in understanding how the internet works, as setting up and actually using BGP. An asn and a /40 for ipv6 can be had for almost nothing as a one time fee if you go through a LIR. Ipv4 is very expensive to buy but renting a /24 can be had for around $100 a month. And then you’re ready to start peering over tunnels or you can get VPSes that support it or ask your ISP (usually only on higher end business connections).
Absolutely nothing has been as helpful in understanding how the internet works, as setting up and actually using BGP. An asn and a /40 for ipv6 can be had for almost nothing as a one time fee if you go through a LIR. Ipv4 is very expensive to buy but renting a /24 can be had for around $100 a month. And then you’re ready to start peering over tunnels or you can get VPSes that support it or ask your ISP (usually only on higher end business connections).