Lines Matching refs:echo
126 $self->{"port_num"} = (getservbyname('echo', 'udp'))[2] ||
127 croak("Can't get udp echo port by name");
163 $self->{"port_num"} = (getservbyname('echo', 'tcp'))[2] ||
164 croak("Can't get tcp echo port by name");
171 $self->{"port_num"} = (getservbyname('echo', 'tcp'))[2] ||
172 croak("Can't get tcp echo port by name");
527 # Description: Perform a tcp echo ping. Since a tcp connection is
854 # Description: Perform a udp echo ping. Construct a message of
1394 # Try connecting to the www port instead of the echo port
1438 connection to the remote host's echo port. If the connection is
1444 packet to the remote host's echo port. If the echoed packet is
1450 appropriate echo service. For Unix-like systems see L<inetd(8)>
1454 echo message to the remote host, which is what the UNIX ping program
1554 as defined by the udp echo service.
1650 privileges, but not all network devices implement tcp or udp echo.
1654 longer to receive an echo packet from the remote host. If the timeout
1659 functioning beyond its ability to echo packets. tcp is slightly better