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I always thought it was strange to see the example loopback address listed as 1.1.1.1 or 1.xxx.xxx.xxx in many of tutorials and official network certification g
by techjuice 8y ago
I always thought it was strange to see the example loopback address listed as 1.1.1.1 or 1.xxx.xxx.xxx in many of tutorials and official network certification guides and why they did not use a private. This is more than likely why many users are having problems because they are being routed to a loopback address on their router or another router. Hopefully network admins and engineers will choose a non public ip space as their loopback address to resolve the problem.
- outworlder 8y agoYes, they were not the sharpest crayons in the box. But CloudFlare has addressed this with lots of vendors. This update is a new one.
- codetrotter 8y agoIndeed. I wish most people used TEST-NET-1, TEST-NET-2 and TEST-NET-3 in documentation and training material. RFC 5735: > 192.0.2.0/24 - This block is assigned as "TEST-NET-1" for use in documentation and example code. It is often used in conjunction with domain names example.com or example.net in vendor and protocol documentation. As described in RFC5737, addresses within this block do not legitimately appear on the public Internet and can be used without any coordination with IANA or an Internet registry. > 198.51.100.0/24 - This block is assigned as "TEST-NET-2" for use in documentation and example code. It is often used in conjunction with domain names example.com or example.net in vendor and protocol documentation. As described in RFC5737, addresses within this block do not legitimately appear on the public Internet and can be used without any coordination with IANA or an Internet registry. > 203.0.113.0/24 - This block is assigned as "TEST-NET-3" for use in documentation and example code. It is often used in conjunction with domain names example.com or example.net in vendor and protocol documentation. As described in RFC5737, addresses within this block do not legitimately appear on the public Internet and can be used without any coordination with IANA or an Internet registry. https://tools.ietf.org/html/rfc5735 https://tools.ietf.org/html/rfc5735
- deleted 8y ago[deleted]
- ocdtrekkie 8y agoEverything there is an example, not actual best practice. But a lot of admins probably just go with 'eh, my textbook used 1.1.1.1, so will I'. Really the only place I saw 1.1.1.1 regularly though is to set the router ID, and making a loopback address is not the best way to do that to begin with.
- zylent 8y agonetwork engineer here, most places I have worked at have used 10.1.x.x for loopback / underlay networks.
- adrianmonk 8y agoI can understand not being able to remember 192.168.X.X. But if that's the issue, why not use 10.X.X.X which is private AND easy to remember? Is it really hard to remember 10?