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- $ ifconfig
- enp0s20f0u6i1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
- inet 172.16.0.2 netmask 255.255.0.0 broadcast 172.16.255.255
- inet6 fe80::f7f7:80c:8a15:5771 prefixlen 64 scopeid 0x20<link>
- ether ee:98:9b:bc:37:ab txqueuelen 1000 (Ethernet)
- RX packets 2687 bytes 186674 (182.2 KiB)
- RX errors 0 dropped 0 overruns 0 frame 0
- TX packets 1648 bytes 176862 (172.7 KiB)
- TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
- enp0s31f6: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
- ether c8:5b:76:6b:e4:90 txqueuelen 1000 (Ethernet)
- RX packets 0 bytes 0 (0.0 B)
- RX errors 0 dropped 0 overruns 0 frame 0
- TX packets 0 bytes 0 (0.0 B)
- TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
- device interrupt 16 memory 0xf1200000-f1220000
- lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
- inet 127.0.0.1 netmask 255.0.0.0
- inet6 ::1 prefixlen 128 scopeid 0x10<host>
- loop txqueuelen 1000 (Local Loopback)
- RX packets 1982 bytes 177290 (173.1 KiB)
- RX errors 0 dropped 0 overruns 0 frame 0
- TX packets 1982 bytes 177290 (173.1 KiB)
- TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
- virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
- inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
- ether 52:54:00:08:e4:d3 txqueuelen 1000 (Ethernet)
- RX packets 0 bytes 0 (0.0 B)
- RX errors 0 dropped 0 overruns 0 frame 0
- TX packets 0 bytes 0 (0.0 B)
- TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
- wlp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
- inet 192.168.2.106 netmask 255.255.255.0 broadcast 192.168.2.255
- inet6 fe80::ebcf:d3b1:5a74:185e prefixlen 64 scopeid 0x20<link>
- ether e4:a7:a0:99:2e:8d txqueuelen 1000 (Ethernet)
- RX packets 135496 bytes 72791497 (69.4 MiB)
- RX errors 0 dropped 0 overruns 0 frame 0
- TX packets 51579 bytes 21450089 (20.4 MiB)
- TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
- pi@MAME82-P4WNP1:~ $ route -n
- Kernel IP routing table
- Destination Gateway Genmask Flags Metric Ref Use Iface
- 0.0.0.0 172.16.0.2 0.0.0.0 UG 0 0 0 usb0
- 172.16.0.0 0.0.0.0 255.255.255.252 U 0 0 0 usb0
- 172.24.0.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
- pi@MAME82-P4WNP1:~ $ ifconfig
- lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
- inet 127.0.0.1 netmask 255.0.0.0
- inet6 ::1 prefixlen 128 scopeid 0x10<host>
- loop txqueuelen 1 (Local Loopback)
- RX packets 0 bytes 0 (0.0 B)
- RX errors 0 dropped 0 overruns 0 frame 0
- TX packets 0 bytes 0 (0.0 B)
- TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
- usb0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
- inet 172.16.0.1 netmask 255.255.255.252 broadcast 172.16.0.3
- inet6 fe80::cc4b:62ff:fe84:7df0 prefixlen 64 scopeid 0x20<link>
- ether ce:4b:62:84:7d:f0 txqueuelen 1000 (Ethernet)
- RX packets 1959 bytes 182340 (178.0 KiB)
- RX errors 0 dropped 0 overruns 0 frame 0
- TX packets 3197 bytes 269463 (263.1 KiB)
- TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
- wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
- inet 172.24.0.1 netmask 255.255.255.0 broadcast 172.24.0.255
- inet6 fe80::ba27:ebff:fe5e:ceb7 prefixlen 64 scopeid 0x20<link>
- ether b8:27:eb:5e:ce:b7 txqueuelen 1000 (Ethernet)
- RX packets 0 bytes 0 (0.0 B)
- RX errors 0 dropped 0 overruns 0 frame 0
- TX packets 14 bytes 1404 (1.3 KiB)
- TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
- $ route -n
- Kernel IP routing table
- Destination Gateway Genmask Flags Metric Ref Use Iface
- 0.0.0.0 192.168.2.1 0.0.0.0 UG 600 0 0 wlp4s0
- 172.16.0.0 0.0.0.0 255.255.0.0 U 0 0 0 enp0s20f0u6i1
- 192.168.2.0 0.0.0.0 255.255.255.0 U 600 0 0 wlp4s0
- 192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
- pi@MAME82-P4WNP1:~ $ cat /etc/resolv.conf
- # Generated by resolvconf
- nameserver 10.46.0.1
- nameserver 8.8.8.8
- nameserver 8.8.4.4
- pi@MAME82-P4WNP1:~ $ cat /etc/network/interfaces
- # interfaces(5) file used by ifup(8) and ifdown(8)
- # Please note that this file is written to be used with dhcpcd
- # For static IP, consult /etc/dhcpcd.conf and 'man dhcpcd.conf'
- # Include files from /etc/network/interfaces.d:
- source-directory /etc/network/interfaces.d
- dns-nameservers 8.8.8.8 8.8.4.4
- auto usb0
- iface usb0 inet manual
- auto usb1
- iface usb1 inet manual
- $ sudo iptables -L
- Chain INPUT (policy ACCEPT)
- target prot opt source destination
- ACCEPT udp -- anywhere anywhere udp dpt:bootps
- ACCEPT tcp -- anywhere anywhere tcp dpt:bootps
- ACCEPT udp -- anywhere anywhere udp dpt:domain
- ACCEPT tcp -- anywhere anywhere tcp dpt:domain
- ACCEPT udp -- anywhere anywhere udp dpt:domain
- ACCEPT tcp -- anywhere anywhere tcp dpt:domain
- ACCEPT udp -- anywhere anywhere udp dpt:bootps
- ACCEPT tcp -- anywhere anywhere tcp dpt:bootps
- ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED
- ACCEPT all -- anywhere anywhere
- INPUT_direct all -- anywhere anywhere
- INPUT_ZONES_SOURCE all -- anywhere anywhere
- INPUT_ZONES all -- anywhere anywhere
- DROP all -- anywhere anywhere ctstate INVALID
- REJECT all -- anywhere anywhere reject-with icmp-host-prohibited
- Chain FORWARD (policy ACCEPT)
- target prot opt source destination
- ACCEPT all -- anywhere 10.42.0.0/24 state RELATED,ESTABLISHED
- ACCEPT all -- 10.42.0.0/24 anywhere
- ACCEPT all -- anywhere anywhere
- REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
- REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
- ACCEPT all -- anywhere 192.168.122.0/24 ctstate RELATED,ESTABLISHED
- ACCEPT all -- 192.168.122.0/24 anywhere
- ACCEPT all -- anywhere anywhere
- REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
- REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
- ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED
- ACCEPT all -- anywhere anywhere
- FORWARD_direct all -- anywhere anywhere
- FORWARD_IN_ZONES_SOURCE all -- anywhere anywhere
- FORWARD_IN_ZONES all -- anywhere anywhere
- FORWARD_OUT_ZONES_SOURCE all -- anywhere anywhere
- FORWARD_OUT_ZONES all -- anywhere anywhere
- DROP all -- anywhere anywhere ctstate INVALID
- REJECT all -- anywhere anywhere reject-with icmp-host-prohibited
- ACCEPT all -- anywhere anywhere
- ACCEPT all -- anywhere anywhere
- ACCEPT all -- anywhere anywhere
- Chain OUTPUT (policy ACCEPT)
- target prot opt source destination
- ACCEPT udp -- anywhere anywhere udp dpt:bootpc
- OUTPUT_direct all -- anywhere anywhere
- Chain FORWARD_IN_ZONES (1 references)
- target prot opt source destination
- FWDI_FedoraWorkstation all -- anywhere anywhere [goto]
- FWDI_FedoraWorkstation all -- anywhere anywhere [goto]
- FWDI_FedoraWorkstation all -- anywhere anywhere [goto]
- Chain FORWARD_IN_ZONES_SOURCE (1 references)
- target prot opt source destination
- Chain FORWARD_OUT_ZONES (1 references)
- target prot opt source destination
- FWDO_FedoraWorkstation all -- anywhere anywhere [goto]
- FWDO_FedoraWorkstation all -- anywhere anywhere [goto]
- FWDO_FedoraWorkstation all -- anywhere anywhere [goto]
- Chain FORWARD_OUT_ZONES_SOURCE (1 references)
- target prot opt source destination
- Chain FORWARD_direct (1 references)
- target prot opt source destination
- Chain FWDI_FedoraWorkstation (3 references)
- target prot opt source destination
- FWDI_FedoraWorkstation_log all -- anywhere anywhere
- FWDI_FedoraWorkstation_deny all -- anywhere anywhere
- FWDI_FedoraWorkstation_allow all -- anywhere anywhere
- ACCEPT icmp -- anywhere anywhere
- Chain FWDI_FedoraWorkstation_allow (1 references)
- target prot opt source destination
- Chain FWDI_FedoraWorkstation_deny (1 references)
- target prot opt source destination
- Chain FWDI_FedoraWorkstation_log (1 references)
- target prot opt source destination
- Chain FWDO_FedoraWorkstation (3 references)
- target prot opt source destination
- FWDO_FedoraWorkstation_log all -- anywhere anywhere
- FWDO_FedoraWorkstation_deny all -- anywhere anywhere
- FWDO_FedoraWorkstation_allow all -- anywhere anywhere
- Chain FWDO_FedoraWorkstation_allow (1 references)
- target prot opt source destination
- Chain FWDO_FedoraWorkstation_deny (1 references)
- target prot opt source destination
- Chain FWDO_FedoraWorkstation_log (1 references)
- target prot opt source destination
- Chain INPUT_ZONES (1 references)
- target prot opt source destination
- IN_FedoraWorkstation all -- anywhere anywhere [goto]
- IN_FedoraWorkstation all -- anywhere anywhere [goto]
- IN_FedoraWorkstation all -- anywhere anywhere [goto]
- Chain INPUT_ZONES_SOURCE (1 references)
- target prot opt source destination
- Chain INPUT_direct (1 references)
- target prot opt source destination
- Chain IN_FedoraWorkstation (3 references)
- target prot opt source destination
- IN_FedoraWorkstation_log all -- anywhere anywhere
- IN_FedoraWorkstation_deny all -- anywhere anywhere
- IN_FedoraWorkstation_allow all -- anywhere anywhere
- ACCEPT icmp -- anywhere anywhere
- Chain IN_FedoraWorkstation_allow (1 references)
- target prot opt source destination
- ACCEPT udp -- anywhere anywhere udp dpt:netbios-ns ctstate NEW
- ACCEPT udp -- anywhere anywhere udp dpt:netbios-dgm ctstate NEW
- ACCEPT tcp -- anywhere anywhere tcp dpt:ssh ctstate NEW
- ACCEPT udp -- anywhere 224.0.0.251 udp dpt:mdns ctstate NEW
- ACCEPT udp -- anywhere anywhere udp dpts:blackjack:65535 ctstate NEW
- ACCEPT tcp -- anywhere anywhere tcp dpts:blackjack:65535 ctstate NEW
- Chain IN_FedoraWorkstation_deny (1 references)
- target prot opt source destination
- Chain IN_FedoraWorkstation_log (1 references)
- target prot opt source destination
- Chain OUTPUT_direct (1 references)
- target prot opt source destination
- auto test0
- iface test0 inet static
- address 192.168.2.202 -- use your address
- netmask 255.255.255.0 -- use your address
- and what other entries your system requires.
- RFC1918 name IP address range largest CIDR block (subnet mask)
- 24-bit block 10.0.0.0 – 10.255.255.255 10.0.0.0/8 (255.0.0.0)
- 20-bit block 172.16.0.0 – 172.31.255.255 172.16.0.0/12 (255.240.0.0)
- 16-bit block 192.168.0.0 – 192.168.255.255 192.168.0.0/16 (255.255.0.0)
- auto usb0
- iface usb0 inet static
- address 172.16.0.1
- netmask 255.240.0.0
- add any other values needed.
- net.ipv4.ip_forward=1
- # This connects to the Pi
- auto test0
- iface test0 inet static
- address 172.16.0.2
- netmask 255.240.0.0
- add any other values needed.
- # This is the internet connection
- auto wlp4s0
- iface wlp4s0 inet static
- address 192.168.2.106
- netmask 255.255.255.255
- add any other values needed like
- gateway a.b.c.d
- dns-nameservers 8.8.8.8 8.8.4.4
- auto wlp4s0
- iface wlp4s0 inet dhcp
- # this rule will forward all traffic from nic test0 to nic wlp4s0
- sudo iptables -A FORWARD -i test0 -o wlp4s0 -j ACCEPT
- # this rule will continue to forward any existing connections from test0 to wlp4so
- sudo iptables -A FORWARD -i test0 -o wlp4s0 -m state --state ESTABLISHED,RELATED -j ACCEPT
- # this rule will wrap the packet with a local address so they do not get lost in transit.
- sudo iptables -t nat -A POSTROUTING -j MASQUERADE
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