In many standard web fonts, the lowercase letter (Lima) and the number "1" (One) look virtually identical. However, network protocols do not recognize letters within standard IPv4 structures. An IP address must strictly consist of four numeric octets ranging from 0 to 255, separated by periods. Replacing the "1" with an "l" breaks the string, preventing command terminals (like ping or traceroute ) from resolving the destination. Correcting the typo back to 103.194.170.154 immediately restores connectivity to the host. Summary of Core Networks
In many standard web fonts, the lowercase letter (Lima) and the number "1" (One) look virtually identical. However, network protocols do not recognize letters within standard IPv4 structures. An IP address must strictly consist of four numeric octets ranging from 0 to 255, separated by periods. Replacing the "1" with an "l" breaks the string, preventing command terminals (like ping or traceroute ) from resolving the destination. Correcting the typo back to 103.194.170.154 immediately restores connectivity to the host. Summary of Core Networks