Dear friends,
Can I ask you some basic question, don't laugh at me :P if u just want to
answer me one of the question, just help me .
1) What is difference between ping and telnet? telnet is using port 23, how
about PING? which port is that? I understand we can use the access-list to
control whether a telnet session can be established, how about ping, Are we
using the ip route command to whether PING traffic to pass thru?
2) We open a port in Firewall to let user can telnet to a server in remote
site. Does it mean that we can ping to the server. If not, What should we
do in order to let user can ping to the server?
3) What is mean by Multicast? I know there is a range of IP for Multicast?
But when we need it?
Thanks
Sim Chee Tong
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