`-dest` `string` :: Restrict packet destination address. This can refer to a single IP address, an IP set ('+ipsetname') or an IP alias definition. You can also specify an address range like '20.34.101.207-201.3.9.99', or a list of IP addresses and networks (entries are separated by comma). Please do not mix IPv4 and IPv6 addresses inside such lists. `-dport` `string` :: Restrict TCP/UDP destination port. You can use service names or simple numbers (0-65535), as defined in '/etc/services'. Port ranges can be specified with '\d+:\d+', for example '80:85', and you can use comma separated list to match several ports or ranges. `-iface` `string` :: Network interface name. You have to use network configuration key names for VMs and containers ('net\d+'). Host related rules can use arbitrary strings. `-proto` `string` :: IP protocol. You can use protocol names ('tcp'/'udp') or simple numbers, as defined in '/etc/protocols'. `-source` `string` :: Restrict packet source address. This can refer to a single IP address, an IP set ('+ipsetname') or an IP alias definition. You can also specify an address range like '20.34.101.207-201.3.9.99', or a list of IP addresses and networks (entries are separated by comma). Please do not mix IPv4 and IPv6 addresses inside such lists. `-sport` `string` :: Restrict TCP/UDP source port. You can use service names or simple numbers (0-65535), as defined in '/etc/services'. Port ranges can be specified with '\d+:\d+', for example '80:85', and you can use comma separated list to match several ports or ranges.