Forwarding between two tun interfacesNot able to connect to local networkUbuntu server can access internet...
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Forwarding between two tun interfaces
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I'm using a border router on an embedded device connected on /dev/ttyUSB0 to route communication from a native server to a client on another embedded device on /dev/ttyUSB1, both using the Contiki-NG OS. When the server runs on my laptop it creates the tun0 interface, and the border router is connected to my laptop through another tun interface, tun1. Selective output from ip addr:
19: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 500
link/none
inet 127.0.1.1/32 scope host tun0
valid_lft forever preferred_lft forever
inet6 fd00::1/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::f88c:8ef4:bddd:5701/64 scope link stable-privacy
valid_lft forever preferred_lft forever
20: tun1: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 500
link/none
inet 127.0.1.1/32 scope host tun1
valid_lft forever preferred_lft forever
inet6 fd00::2/128 scope global
valid_lft forever preferred_lft forever
inet6 fe80::2/64 scope link
valid_lft forever preferred_lft forever
inet6 fe80::29ba:e73:b071:4d1f/64 scope link stable-privacy
valid_lft forever preferred_lft forever
The client can ping the router but not the native server. How can I forward traffic from the router on tun1 to the server on tun0 so that the server and client can communicate? I've tried adding a bridge through brctl addbr br0 and adding a tun by brctl addif br0 tun0, but it seems only tap interfaces can be added this way.
networking iptables interface
asked 14 hours ago
Simon CarlsonSimon Carlson
1012
add a comment |
I'm using a border router on an embedded device connected on /dev/ttyUSB0 to route communication from a native server to a client on another embedded device on /dev/ttyUSB1, both using the Contiki-NG OS. When the server runs on my laptop it creates the tun0 interface, and the border router is connected to my laptop through another tun interface, tun1. Selective output from ip addr:
19: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 500
link/none
inet 127.0.1.1/32 scope host tun0
valid_lft forever preferred_lft forever
inet6 fd00::1/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::f88c:8ef4:bddd:5701/64 scope link stable-privacy
valid_lft forever preferred_lft forever
20: tun1: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 500
link/none
inet 127.0.1.1/32 scope host tun1
valid_lft forever preferred_lft forever
inet6 fd00::2/128 scope global
valid_lft forever preferred_lft forever
inet6 fe80::2/64 scope link
valid_lft forever preferred_lft forever
inet6 fe80::29ba:e73:b071:4d1f/64 scope link stable-privacy
valid_lft forever preferred_lft forever
The client can ping the router but not the native server. How can I forward traffic from the router on tun1 to the server on tun0 so that the server and client can communicate? I've tried adding a bridge through brctl addbr br0 and adding a tun by brctl addif br0 tun0, but it seems only tap interfaces can be added this way.
networking iptables interface
asked 14 hours ago
Simon CarlsonSimon Carlson
1012
add a comment |
I'm using a border router on an embedded device connected on /dev/ttyUSB0 to route communication from a native server to a client on another embedded device on /dev/ttyUSB1, both using the Contiki-NG OS. When the server runs on my laptop it creates the tun0 interface, and the border router is connected to my laptop through another tun interface, tun1. Selective output from ip addr:
19: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 500
link/none
inet 127.0.1.1/32 scope host tun0
valid_lft forever preferred_lft forever
inet6 fd00::1/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::f88c:8ef4:bddd:5701/64 scope link stable-privacy
valid_lft forever preferred_lft forever
20: tun1: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 500
link/none
inet 127.0.1.1/32 scope host tun1
valid_lft forever preferred_lft forever
inet6 fd00::2/128 scope global
valid_lft forever preferred_lft forever
inet6 fe80::2/64 scope link
valid_lft forever preferred_lft forever
inet6 fe80::29ba:e73:b071:4d1f/64 scope link stable-privacy
valid_lft forever preferred_lft forever
The client can ping the router but not the native server. How can I forward traffic from the router on tun1 to the server on tun0 so that the server and client can communicate? I've tried adding a bridge through brctl addbr br0 and adding a tun by brctl addif br0 tun0, but it seems only tap interfaces can be added this way.
networking iptables interface
asked 14 hours ago
Simon CarlsonSimon Carlson
1012
I'm using a border router on an embedded device connected on /dev/ttyUSB0 to route communication from a native server to a client on another embedded device on /dev/ttyUSB1, both using the Contiki-NG OS. When the server runs on my laptop it creates the tun0 interface, and the border router is connected to my laptop through another tun interface, tun1. Selective output from ip addr:
19: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 500
link/none
inet 127.0.1.1/32 scope host tun0
valid_lft forever preferred_lft forever
inet6 fd00::1/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::f88c:8ef4:bddd:5701/64 scope link stable-privacy
valid_lft forever preferred_lft forever
20: tun1: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 500
link/none
inet 127.0.1.1/32 scope host tun1
valid_lft forever preferred_lft forever
inet6 fd00::2/128 scope global
valid_lft forever preferred_lft forever
inet6 fe80::2/64 scope link
valid_lft forever preferred_lft forever
inet6 fe80::29ba:e73:b071:4d1f/64 scope link stable-privacy
valid_lft forever preferred_lft forever
The client can ping the router but not the native server. How can I forward traffic from the router on tun1 to the server on tun0 so that the server and client can communicate? I've tried adding a bridge through brctl addbr br0 and adding a tun by brctl addif br0 tun0, but it seems only tap interfaces can be added this way.
networking iptables interface
networking iptables interface
asked 14 hours ago
Simon CarlsonSimon Carlson
1012
asked 14 hours ago
Simon CarlsonSimon Carlson
1012
asked 14 hours ago
Simon CarlsonSimon Carlson
1012
asked 14 hours ago
Simon CarlsonSimon Carlson
1012
asked 14 hours ago
Simon CarlsonSimon Carlson
1012
1012
add a comment |
add a comment |
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