Dear All,
I am in process of implementing Path MTU detection technique. So for that I have to send ICMP ECHO request packets to destination host, and process the received ICMP ECHO reply packets.
I read that the ICMP server is embedded in the kernel of OS itself, so there is no need to write server code at all. So for sending and receiving of ICMP packets we will use raw sockets without specifying any port number.
But in between the network, some routers have some firewall configuration so that they will simply drop any incomming ICMP packet without sending any response to the sender. Hence originating host will not be aware of the status of destination host.
These firewall settings are due to some attacks like Ping of deth, Denial of request etc.
These firewall settings are due to some attacks like Ping of deth, Denial of request etc.
Can any one provide me any solution to overcome this problem.
Thanks in advance.
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