Unreachable Host Destination is noticed because of following reasons:1) When a routing table is having corrupted entries ...

Unreachable Host Destination is noticed because of following reasons:1) When a routing table is having corrupted entries which does not let the corresponding router to find a route to the remote host.The intermediate host(router) who had replied with that status does seems to have issue with its routing table.Please check with your administrator to report this issue if persists longer than usual.