Try to capture a packet on the network waiting maximout of t milliseconds and using a filter if
specified (the filter is based on pcap, so see the man page of tcpdump for the syntax).
packetName timestamp
timestamp
Returns the timestamp of a capture packet or 0 if the packet has not been captured.
device ethernet device ip device netmask device mtu
ethernet address IP address network mask MTU
Returns some info about the ethernet and IP addresses, netmask and MTU of the host running GASP.
device arp IPaddress
ethernet address
Return the ARP address for the IP address. This is done by sending an ARP request to the
network to which GASP is attached and waiting/analyzing the reply.