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--- vpn-ssh-tap [2020/07/25 01:34]
robm
+++ vpn-ssh-tap [2020/07/25 12:28]
robm [VPN via SSH TAP interfaces]
@@ Line 3: / Line 3: @@
 Useful to run the following on both local and remote, to get a sense of what's happening:
-<code>
+  * ''bridge monitor''
-bridge monitor
+  * ''watch ip --brief address''
-</code>
+  * ''watch ip --brief link''
+  * ''watch bridge link''
 VM, where eth1 is connected to the network I want to make my RPi appear in:
@@ Line 19: / Line 21: @@
 <code>
+VM_HOST=192.168.167.237
 sudo ip link add br0 up type bridge
+sudo ip link set eth0 up master br0
 sudo ssh \
   -o PermitLocalCommand=yes \
@@ Line 26: / Line 30: @@
   -w 5:5 \
   -t \
-  root@192.168.167.237 \
+  root@${VM_HOST} \
   "ip link set tap5 up master br0"
 </code>
+===== Debugging =====
+I found [[https://www.wireshark.org/docs/man-pages/tshark.html| tshark - Dump and analyze network traffic]] useful, as it can capture ethernet frames to a file (such as ''/vagrant/tshark'') which you can then load into the Wireshark GUI after the fact.

RobMeerman.co.uk