- Target must have Server service running to establish session.
- NT target must have licenses available to establish a session. A server overcommitted on its licenses can respond to ping but not a session oriented protocol.
- Net commands require port 139 to be enabled on routers.
- ping send small packets (74 bytes). A router may be misconfigured to only
support small packets. Use ping to test packet sizes normally used by Net
ping target -l 1012
ping target -l 2024
ping target -l 3036
ping target -l 4048
- Verify that target is not hung. Ping has been know to generate responses on hung systems.
C:\WINNT>ping /? Usage: ping [-t] [-a] [-n count] [-l size] [-f] [-i TTL] [-v TOS] [-r count] [-s count] [[-j host-list] | [-k host-list]] [-w timeout] destination-list Options: -t Ping the specified host until stopped. To see statistics and continue - type Control-Break; To stop - type Control-C. -a Resolve addresses to hostnames. -n count Number of echo requests to send. -l size Send buffer size. -f Set Don't Fragment flag in packet. -i TTL Time To Live. -v TOS Type Of Service. -r count Record route for count hops. -s count Timestamp for count hops. -j host-list Loose source route along host-list. -k host-list Strict source route along host-list. -w timeout Timeout in milliseconds to wait for each reply.