Chain FORWARD (policy ACCEPT)
target     prot opt source             destination
usb-w      all  --  0.0.0.0/0          192.168.1.3
usb-w      all  --  192.168.1.3        0.0.0.0/0       MAC 00:11:22:33:44:55
tab        all  --  0.0.0.0/0          192.168.1.4
tab        all  --  192.168.1.4        0.0.0.0/0       MAC 66:77:88:99:AA:BB
Local      all  --  0.0.0.0/0          0.0.0.0/0

Chain Local (2 references)
target     prot opt source               destination
ACCEPT     all  --  192.168.1.0/24       192.168.1.0/24
REJECT     all  --  192.168.1.0/24       0.0.0.0       reject-with icmp-port-unreachable

Chain usb-w (2 references)
target     prot opt source               destination
Local      all  --  0.0.0.0/0            0.0.0.0/0

Chain tab (2 references)
target     prot opt source               destination
ACCEPT      all  --  0.0.0.0/0            0.0.0.0/