Update network_debug_troubleshooting.rst (#52446)

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+label: docsite_pr

docs/docsite/rst/network/user_guide/network_debug_troubleshooting.rst

@@ -646,6 +646,12 @@ no additional changes necessary.  The network module will now connect to the
 network device by first connecting to the host specified in
 ``ansible_ssh_common_args``, which is ``bastion01`` in the above example.
 
+You can also set the proxy target for all hosts by using environment variables.
+
+.. code-block:: sh
+
+    export ANSIBLE_SSH_ARGS='-o ProxyCommand="ssh -W %h:%p -q bastion01"'
+
 Using bastion/jump host with netconf connection
 -----------------------------------------------