ICMP Host Unreachable from 128.2.177.47 for ICMP Echo sent to lupe.auton.cs.cmu.edu (128.2.177.71) ICMP Host Unreachable from 128.2.177.47 for ICMP Echo sent to lupe.auton.cs.cmu.edu (128.2.177.71) ICMP Host Unreachable from 128.2.177.47 for ICMP Echo sent to lupe.auton.cs.cmu.edu (128.2.177.71)