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authorcurrite <sll@disroot.org>2020-01-17 01:40:37 +0100
committerChristian Poessinger <christian@poessinger.com>2020-01-21 12:55:52 +0100
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treeccd0e1dad3557896f3e1b0b32d0e08eb867fea07 /docs/troubleshooting.rst
parent9ee929766b70a325e90bc12c711785a85be28992 (diff)
downloadvyos-documentation-f0106f6a5c07e70d54c1cd75c2184a56c4fc7d20.tar.gz
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troubleshooting: remove old monitor interfaces command
remove monitor interfaces command and replace tshark with tcpdump
Diffstat (limited to 'docs/troubleshooting.rst')
-rw-r--r--docs/troubleshooting.rst113
1 files changed, 53 insertions, 60 deletions
diff --git a/docs/troubleshooting.rst b/docs/troubleshooting.rst
index 450dcdd9..baaa7452 100644
--- a/docs/troubleshooting.rst
+++ b/docs/troubleshooting.rst
@@ -88,81 +88,74 @@ 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:
+VyOS features several monitoring tools.
.. code-block:: none
- vyos@vyos:~$ monitor interfaces
+ vyos@vyos:~$ monitor
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:
+ bandwidth Monitor interface bandwidth in real time
+ bandwidth-test
+ Initiate or wait for bandwidth test
+ cluster Monitor clustering service
+ command Monitor an operational mode command (refreshes every 2 seconds)
+ conntrack-sync
+ Monitor conntrack-sync
+ content-inspection
+ Monitor Content-Inspection
+ dhcp Monitor Dynamic Host Control Protocol (DHCP)
+ dns Monitor a Domain Name Service (DNS) daemon
+ firewall Monitor Firewall
+ https Monitor the Secure Hypertext Transfer Protocol (HTTPS) service
+ lldp Monitor Link Layer Discovery Protocol (LLDP) daemon
+ log Monitor last lines of messages file
+ nat Monitor network address translation (NAT)
+ openvpn Monitor OpenVPN
+ protocol Monitor routing protocols
+ snmp Monitor Simple Network Management Protocol (SNMP) daemon
+ stop-all Stop all current background monitoring processes
+ traceroute Monitor the path to a destination in realtime
+ traffic Monitor traffic dumps
+ vpn Monitor VPN
+ vrrp Monitor Virtual Router Redundancy Protocol (VRRP)
+ webproxy Monitor Webproxy service
+
+
+Traffic Dumps
+^^^^^^^^^^^^^
+
+To monitor interface traffic, issue the :code:`monitor traffic interface <type> <name>`
+command, replacing `<type>` and `<name>` with your desired interface
+type and name, respectively.
.. code-block:: none
- 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
+ vyos@vyos:~$ monitor traffic interface eth0
+ tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
+ listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes
+ 15:54:28.581601 IP 192.168.0.1 > vyos: ICMP echo request, id 1870, seq 3848, length 64
+ 15:54:28.581660 IP vyos > 192.168.0.1: ICMP echo reply, id 1870, seq 3848, length 64
+ 15:54:29.583399 IP 192.168.0.1 > vyos: ICMP echo request, id 1870, seq 3849, length 64
+ 15:54:29.583454 IP vyos > 192.168.0.1: ICMP echo reply, id 1870, seq 3849, length 64
+ ^C
+ 4 packets captured
+ 4 packets received by filter
+ 0 packets dropped by kernel
+ vyos@vyos:~$
-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 quit monitoring, press `Ctrl-c` 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:
+Traffic can be filtered and saved.
.. code-block:: none
- vyos@vyos:~$ monitor interfaces ethernet eth0 traffic
+ vyos@vyos:~$ monitor traffic interface eth0
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
+ filter Monitor traffic matching filter conditions
+ save Save traffic dump from an interface to a file
-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).
Interface Bandwidth
^^^^^^^^^^^^^^^^^^^