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diff --git a/docs/ch16-troubleshooting.rst b/docs/ch16-troubleshooting.rst deleted file mode 100644 index 47abab04..00000000 --- a/docs/ch16-troubleshooting.rst +++ /dev/null @@ -1,164 +0,0 @@ -Troubleshooting -=============== - -Sometimes things break or don't work as expected. This section describes -several troubleshooting tools provided by VyOS that can help when something -goes wrong. - -Basic Connectivity Verification -------------------------------- - -Verifying connectivity can be done with the familiar `ping` and `traceroute` -commands. The options for each are shown (the options for each command were -displayed using the built-in help as described in the `Command-Line Interface`_ -section and are omitted from the output here): - -.. code-block:: sh - - vyos@vyos:~$ ping - Possible completions: - <hostname> Send Internet Control Message Protocol (ICMP) echo request - <x.x.x.x> - <h:h:h:h:h:h:h:h> - -Several options are available when more extensive troubleshooting is needed: - -.. code-block:: sh - - vyos@vyos:~$ ping 8.8.8.8 - Possible completions: - <Enter> Execute the current command - adaptive Ping options - allow-broadcast - audible - bypass-route - count - deadline - flood - interface - interval - mark - no-loopback - numeric - pattern - quiet - record-route - size - timestamp - tos - ttl - verbose - -.. code-block:: sh - - vyos@vyos:~$ traceroute - Possible completions: - <hostname> Track network path to specified node - <x.x.x.x> - <h:h:h:h:h:h:h:h> - ipv4 Track network path to <hostname|IPv4 address> - ipv6 Track network path to <hostname|IPv6 address> - -However, another tool, mtr_, is available which combines ping and traceroute -into a single tool. An example of its output is shown: - -.. code-block:: sh - - vyos@vyos:~$ mtr 10.62.212.12 - - My traceroute [v0.85] - vyos (0.0.0.0) - Keys: Help Display mode Restart statistics Order of fields quit - Packets Pings - Host Loss% Snt Last Avg Best Wrst StDev - 1. 10.11.110.4 0.0% 34 0.5 0.5 0.4 0.8 0.1 - 2. 10.62.255.184 0.0% 34 1.1 1.0 0.9 1.4 0.1 - 3. 10.62.255.71 0.0% 34 1.4 1.4 1.3 2.0 0.1 - 4. 10.62.212.12 0.0% 34 1.6 1.6 1.6 1.7 0.0 - -**NOTE:** The output of '''mtr''' consumes the screen and will replace your -command prompt. - -Several options are available for changing the display output. Press `h` to -invoke the built in help system. To quit, just press `q` and you'll be returned -to the VyOS command prompt. - -Monitoring Network Interfaces ------------------------------ - -It's possible to monitor network traffic, either at the flow level or protocol -level. This can be useful when troubleshooting a variety of protocols and -configurations. The following interface types can be monitored: - -.. code-block:: sh - - vyos@vyos:~$ monitor interfaces - Possible completions: - <Enter> Execute the current command - bonding Monitor a bonding interface - bridge Monitor a bridge interface - ethernet Monitor a ethernet interface - loopback Monitor a loopback interface - openvpn Monitor an openvpn interface - pppoe Monitor pppoe interface - pseudo-ethernet - Monitor a pseudo-ethernet interface - tunnel Monitor a tunnel interface - vrrp Monitor a vrrp interface - vti Monitor a vti interface - wireless Monitor wireless interface - -To monitor traffic flows, issue the :code:`monitor interfaces <type> <name> flow` -command, replacing `<type>` and `<name>` with your desired interface type and -name, respectively. Output looks like the following: - -.. code-block:: sh - - 12.5Kb 25.0Kb 37.5Kb 50.0Kb 62.5Kb - ???????????????????????????????????????????????????????????????????????????????????????????????????? - 10.11.111.255 => 10.11.110.37 0b 0b 0b - <= 624b 749b 749b - 10.11.110.29 => 10.62.200.11 0b 198b 198b - <= 0b 356b 356b - 255.255.255.255 => 10.11.110.47 0b 0b 0b - <= 724b 145b 145b - 10.11.111.255 => 10.11.110.47 0b 0b 0b - <= 724b 145b 145b - 10.11.111.255 => 10.11.110.255 0b 0b 0b - <= 680b 136b 136b - ???????????????????????????????????????????????????????????????????????????????????????????????????? - TX: cumm: 26.7KB peak: 40.6Kb rates: 23.2Kb 21.4Kb 21.4Kb - RX: 67.5KB 63.6Kb 54.6Kb 54.0Kb 54.0Kb - TOTAL: 94.2KB 104Kb 77.8Kb 75.4Kb 75.4Kb - -Several options are available for changing the display output. Press `h` to -invoke the built in help system. To quit, just press `q` and you'll be returned -to the VyOS command prompt. - -To monitor interface traffic, issue the :code:`monitor interfaces <type> <name> -traffic` command, replacing `<type>` and `<name>` with your desired interface -type and name, respectively. This command invokes the familiar tshark_ utility -and the following options are available: - -.. code-block:: sh - - vyos@vyos:~$ monitor interfaces ethernet eth0 traffic - Possible completions: - <Enter> Execute the current command - detail Monitor detailed traffic for the specified ethernet interface - filter Monitor filtered traffic for the specified ethernet interface - save Save monitored traffic to a file - unlimited Monitor traffic for the specified ethernet interface - -To quit monitoring, press `Ctrl-c` and you'll be returned to the VyOS command -prompt. The `detail` keyword provides verbose output of the traffic seen on -the monitored interface. The `filter` keyword accepts valid `PCAP filter -expressions`_, enclosed in single or double quotes (e.g. "port 25" or "port 161 -and udp"). The `save` keyword allows you to save the traffic dump to a file. -The `unlimited` keyword is used to specify that an unlimited number of packets -can be captured (by default, 1,000 packets are captured and you're returned to -the VyOS command prompt). - -.. _mtr: http://www.bitwizard.nl/mtr/ -.. _tshark: https://www.wireshark.org/docs/man-pages/tshark.html -.. _`PCAP filter expressions`: http://www.tcpdump.org/manpages/pcap-filter.7.html |