Looking Glass servers are computers on the Internet running one of a variety of publicly available Looking Glass software implementations. A Looking Glass server (or lg server) is accessed remotely for the purpose of viewing routing info. Essentially, the server acts as a limited, read-only portal to routers of whatever organization is running the lg server. Typically, publicly accessible looking glass servers are run by ISPs or NOCs.

External links

• Packet Clearing House looking glass servers around the world.
• Looking Glass server source code
• Clickable map of known Reverse Lookup and Looking Glass servers in the world
• Looking Glass Wiki - List of hundreds of Looking Glass servers, sorted by Autonomous System Number.
• IPv4 and IPv6 BGP Looking Glasses at BGP4.as