How do we check for ICMP settings

[Robert DJ]

Hi,
Could anyone let me know how we can check the ICMP settings for each servers.

Thank you.
RDJ

[Steven E. Protter]

Shalom

Check ICMP settings?

Perhaps try to ping the server.

See the command ndd

I think you need to be more specific.

SEP

[Michael Steele_2]

Sounds like you may be running into a firewall where icmp is disabled to prevent icmp 'denial of service' attacks. Ping and spray are two 'denial of service' tools. Do you have any cisco pix routers in the network? Are you trying to reach a server behind a DMZ? Are you going between subnets?

If you can ping between your workstation and another ip address within your subnet but you can't ping to a ip address outside your subnet then your firewall is blocking icmp traffic. Same goes with the destination ip, go to a work station in the destination subnet and try to ping the destination from there. If you succeed to ping the destination with a work station from within the destination subnet then try to ping your work station again. If you can't ping back to your workstation from the destination subnet then you proven for a 2nd time that a firewall is blocking icmp traffic.

This is not unusual and very common.