Using iptables to Bridge Network Interfaces
Clash Royale CLAN TAG#URR8PPP
I three devices connected like so;
.
- Device A runs Windows.
- Devices B and C run Linux
I want device A to be able to connect with device C and vice versa. Device B does not need to anything but bridge the connection between the two interfaces.
All of the IP's are static. I have implimented the following iptables solution, however, this solution only allows for connections originating with Device C due to the nature of the masquerade. I can currently ping from device C to device A. But from device A I cannot ping any of the IP addresses on the eth0 interface
I would like to be able to ping both ways from A -> C and from C -> A.
The following code runs on Device B.
sysctl -w net.ipv4.ip_forward=1
iptables -A FORWARD -i sn0 -o usb0 -j ACCEPT
iptables -A FORWARD -i usb0 -o sn0 -j ACCEPT
iptables -t nat -A POSTROUTING -o usb0 -j MASQUERADE
linux networking iptables
asked Jul 29 '16 at 2:10
Chris PugliaChris Puglia
62
migrated from stackoverflow.com Aug 11 '16 at 12:00
This question came from our site for professional and enthusiast programmers.
add a comment |
I three devices connected like so;
.
- Device A runs Windows.
- Devices B and C run Linux
I want device A to be able to connect with device C and vice versa. Device B does not need to anything but bridge the connection between the two interfaces.
All of the IP's are static. I have implimented the following iptables solution, however, this solution only allows for connections originating with Device C due to the nature of the masquerade. I can currently ping from device C to device A. But from device A I cannot ping any of the IP addresses on the eth0 interface
I would like to be able to ping both ways from A -> C and from C -> A.
The following code runs on Device B.
sysctl -w net.ipv4.ip_forward=1
iptables -A FORWARD -i sn0 -o usb0 -j ACCEPT
iptables -A FORWARD -i usb0 -o sn0 -j ACCEPT
iptables -t nat -A POSTROUTING -o usb0 -j MASQUERADE
linux networking iptables
asked Jul 29 '16 at 2:10
Chris PugliaChris Puglia
62
migrated from stackoverflow.com Aug 11 '16 at 12:00
This question came from our site for professional and enthusiast programmers.
Please note that Stackoverflow is for programming related questions only. Please review the help center for what topics can be asked here. This question may be appropriate on other SE sites such as Unix & Linux or superuser. Check their help first to see if the question belongs there and if so you can click the "flag" link to request migration there.
– kaylum
Jul 29 '16 at 3:26
add a comment |
I three devices connected like so;
.
- Device A runs Windows.
- Devices B and C run Linux
I want device A to be able to connect with device C and vice versa. Device B does not need to anything but bridge the connection between the two interfaces.
All of the IP's are static. I have implimented the following iptables solution, however, this solution only allows for connections originating with Device C due to the nature of the masquerade. I can currently ping from device C to device A. But from device A I cannot ping any of the IP addresses on the eth0 interface
I would like to be able to ping both ways from A -> C and from C -> A.
The following code runs on Device B.
sysctl -w net.ipv4.ip_forward=1
iptables -A FORWARD -i sn0 -o usb0 -j ACCEPT
iptables -A FORWARD -i usb0 -o sn0 -j ACCEPT
iptables -t nat -A POSTROUTING -o usb0 -j MASQUERADE
linux networking iptables
asked Jul 29 '16 at 2:10
Chris PugliaChris Puglia
62
I three devices connected like so;
.
- Device A runs Windows.
- Devices B and C run Linux
I want device A to be able to connect with device C and vice versa. Device B does not need to anything but bridge the connection between the two interfaces.
All of the IP's are static. I have implimented the following iptables solution, however, this solution only allows for connections originating with Device C due to the nature of the masquerade. I can currently ping from device C to device A. But from device A I cannot ping any of the IP addresses on the eth0 interface
I would like to be able to ping both ways from A -> C and from C -> A.
The following code runs on Device B.
sysctl -w net.ipv4.ip_forward=1
iptables -A FORWARD -i sn0 -o usb0 -j ACCEPT
iptables -A FORWARD -i usb0 -o sn0 -j ACCEPT
iptables -t nat -A POSTROUTING -o usb0 -j MASQUERADE
linux networking iptables
linux networking iptables
asked Jul 29 '16 at 2:10
Chris PugliaChris Puglia
62
asked Jul 29 '16 at 2:10
Chris PugliaChris Puglia
62
asked Jul 29 '16 at 2:10
Chris PugliaChris Puglia
62
asked Jul 29 '16 at 2:10
Chris PugliaChris Puglia
62
asked Jul 29 '16 at 2:10
Chris PugliaChris Puglia
62
62
migrated from stackoverflow.com Aug 11 '16 at 12:00
This question came from our site for professional and enthusiast programmers.
migrated from stackoverflow.com Aug 11 '16 at 12:00
This question came from our site for professional and enthusiast programmers.
Please note that Stackoverflow is for programming related questions only. Please review the help center for what topics can be asked here. This question may be appropriate on other SE sites such as Unix & Linux or superuser. Check their help first to see if the question belongs there and if so you can click the "flag" link to request migration there.
– kaylum
Jul 29 '16 at 3:26
add a comment |
Please note that Stackoverflow is for programming related questions only. Please review the help center for what topics can be asked here. This question may be appropriate on other SE sites such as Unix & Linux or superuser. Check their help first to see if the question belongs there and if so you can click the "flag" link to request migration there.
– kaylum
Jul 29 '16 at 3:26
Please note that Stackoverflow is for programming related questions only. Please review the help center for what topics can be asked here. This question may be appropriate on other SE sites such as Unix & Linux or superuser. Check their help first to see if the question belongs there and if so you can click the "flag" link to request migration there.
– kaylum
Jul 29 '16 at 3:26
Please note that Stackoverflow is for programming related questions only. Please review the help center for what topics can be asked here. This question may be appropriate on other SE sites such as Unix & Linux or superuser. Check their help first to see if the question belongs there and if so you can click the "flag" link to request migration there.
– kaylum
Jul 29 '16 at 3:26
add a comment |
1 Answer
1
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oldest
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iptables isn't used for this sort of functionality, you will get more success creating a network bridging interface on the middle B device.
The Arch wiki has a good guide to setting one up (the guide will apply to most other Linux distros, not just Arch), at this link
answered Aug 11 '16 at 18:42
einonmeinonm
1,234521
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
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oldest
votes
active
oldest
votes
iptables isn't used for this sort of functionality, you will get more success creating a network bridging interface on the middle B device.
The Arch wiki has a good guide to setting one up (the guide will apply to most other Linux distros, not just Arch), at this link
answered Aug 11 '16 at 18:42
einonmeinonm
1,234521
add a comment |
iptables isn't used for this sort of functionality, you will get more success creating a network bridging interface on the middle B device.
The Arch wiki has a good guide to setting one up (the guide will apply to most other Linux distros, not just Arch), at this link
answered Aug 11 '16 at 18:42
einonmeinonm
1,234521
add a comment |
iptables isn't used for this sort of functionality, you will get more success creating a network bridging interface on the middle B device.
The Arch wiki has a good guide to setting one up (the guide will apply to most other Linux distros, not just Arch), at this link
answered Aug 11 '16 at 18:42
einonmeinonm
1,234521
iptables isn't used for this sort of functionality, you will get more success creating a network bridging interface on the middle B device.
The Arch wiki has a good guide to setting one up (the guide will apply to most other Linux distros, not just Arch), at this link
answered Aug 11 '16 at 18:42
einonmeinonm
1,234521
answered Aug 11 '16 at 18:42
einonmeinonm
1,234521
answered Aug 11 '16 at 18:42
einonmeinonm
1,234521
answered Aug 11 '16 at 18:42
einonmeinonm
1,234521
1,234521
add a comment |
add a comment |
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Please note that Stackoverflow is for programming related questions only. Please review the help center for what topics can be asked here. This question may be appropriate on other SE sites such as Unix & Linux or superuser. Check their help first to see if the question belongs there and if so you can click the "flag" link to request migration there.
– kaylum
Jul 29 '16 at 3:26