sctp_darn: unrecognized option '--version' Usage: sctp_darn -H <localhost> -P <localport> [-h <remotehost>] [-p <remoteport>] -l|s -H, --local specify one of the local addresses, -P, --local-port specify the port number for local addresses, -h, --remote specify the peer address, -p, --remote-port specify the port number for the peer address, -l, --listen print messages received from the peer, -s, --send send messages to the peer, -B, --bindx-add add the specified address(es) as additional bind addresses to the local socket. Multiple addresses can be specified by using this argument multiple times. For example, '-B 10.0.0.1 -B 20.0.0.2'. -b, --bindx-rem remove the specified address(es) from the bind addresses of the local socket. Multiple addresses can be specified by using this argument multiple times. For example, '-b 10.0.0.1 -b 20.0.0.2'. -c, --connectx use the specified address(es) for connection to the peer socket. Multiple addresses can be specified by using this argument multiple times. For example, '-c 10.0.0.1 -c 20.0.0.2'. This option is incompatible with the -h option. -I use the interactive mode. -i setup the specified number of endpoints by using the specified local host (-H) and local port (-P). The port number will be incremented by one for each additional endpoint. All of these endpoints will be listening. If a remote host (-h) and a remote port are also specified, the first endpoint will start sending fixed sized messages to the remote host. -m specify the sockopt sndbuf/rcvbuf size. -n set the socket(s) to be in the non-blocking mode. collect messages from stdin and deliver them to the peer, --use-poll use system call poll() for polling among the number of endpoints specified by the -i option. Without this option, select() would be used as default. -t use SOCK_STREAM tcp-style sockets. -z specify the message size to be sent. The default message size generated would be 16K. --interface="ifname" select interface for sin6_scope_id.

sctp_darn: unrecognized option '--help' Usage: sctp_darn -H <localhost> -P <localport> [-h <remotehost>] [-p <remoteport>] -l|s -H, --local specify one of the local addresses, -P, --local-port specify the port number for local addresses, -h, --remote specify the peer address, -p, --remote-port specify the port number for the peer address, -l, --listen print messages received from the peer, -s, --send send messages to the peer, -B, --bindx-add add the specified address(es) as additional bind addresses to the local socket. Multiple addresses can be specified by using this argument multiple times. For example, '-B 10.0.0.1 -B 20.0.0.2'. -b, --bindx-rem remove the specified address(es) from the bind addresses of the local socket. Multiple addresses can be specified by using this argument multiple times. For example, '-b 10.0.0.1 -b 20.0.0.2'. -c, --connectx use the specified address(es) for connection to the peer socket. Multiple addresses can be specified by using this argument multiple times. For example, '-c 10.0.0.1 -c 20.0.0.2'. This option is incompatible with the -h option. -I use the interactive mode. -i setup the specified number of endpoints by using the specified local host (-H) and local port (-P). The port number will be incremented by one for each additional endpoint. All of these endpoints will be listening. If a remote host (-h) and a remote port are also specified, the first endpoint will start sending fixed sized messages to the remote host. -m specify the sockopt sndbuf/rcvbuf size. -n set the socket(s) to be in the non-blocking mode. collect messages from stdin and deliver them to the peer, --use-poll use system call poll() for polling among the number of endpoints specified by the -i option. Without this option, select() would be used as default. -t use SOCK_STREAM tcp-style sockets. -z specify the message size to be sent. The default message size generated would be 16K. --interface="ifname" select interface for sin6_scope_id.