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Syntax
Description
Options
Required Privilege Level
Output Fields
Sample Output
Release Information

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clear tcp-forwarding connections

date_range 19-Nov-23

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Syntax

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clear tcp-forwarding connections
listening-port listening-port-number listening-address ipv4-listening-address
source-address source-ipv4-address source-port source-port-number
routing-instance routing-instance-name

Description

Clear all TCP connections, all connections associated with a specific listening port/listening address combination, or a single connection pair represented by a specific source address/source port combination. For either combination, you can optionally specify a routing instance. If you do not specify a routing instance, the default routing instance is assumed. This command enables you to disconnect TCP port forwarding connections that are not behaving properly.

Options

listening-address `ipv4-listening-address`	IPv4 address that is part of a listening port/listening address combination. The listening address is one on the BNG that external management systems or remote devices must use when attempting to trigger connections on the listening port. You must also specify a listening port.
listening-port `port-number`	Port number that is part of a listening port/listening address combination. The listening port is one that the BNG monitors for connections to be triggered by external management systems or remote devices. Range: 8000 through 8031
source-address `source-ipv4-address`	Source address of the triggering entity—the remote device or external management system—that appear in the TCP header.
source-port `source-port-number`	Source port of the triggering entity—the remote device or external management system—that appear in the TCP header. Range: 1 through 65,535
routing-instance `routing-instance-name`	Name of the routing instance for the TCP mapping.

Required Privilege Level

view

Output Fields

When you enter this command, you are not provided feedback on the status of your request.

Sample Output

clear tcp-forwarding connections
clear tcp-forwarding connections (Listening Port and Address)
clear tcp-forwarding connections (Source Address and Port)

clear tcp-forwarding connections

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user@host> clear tcp-forwarding connections

clear tcp-forwarding connections (Listening Port and Address)

The following sample output displays the TCP connection status for a specific listening port/address combination before and after the connection is cleared.

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user@host> show tcp-forwarding status listening-port 203.0.113.50 listening-address 8002
Listening on: [default:]203.0.113.50:8002
    Status: listening
    Total Bytes Rx: 1230 Tx: 482
  Forwarding to: [default:]192.0.0.4:830
    Total Bytes Rx: 482 Tx: 1230
  Allowed Source Prefixes:
    198.51.100.3/32
  Connections Max: 1 Active: 1
    Source: 198.51.100.3:55002
      Listening: connected Bytes Rx: 0 Tx: 0
      Forwarding: connected Bytes Rx: 0 Tx: 0

user@host> clear tcp-forwarding connections listening-port 8002 listening-address 203.0.113.50

user@host> show tcp-forwarding status listening-port 8002 listening-address 203.0.113.50

clear tcp-forwarding connections (Source Address and Port)

The following sample output displays the TCP connection status before and after the connection is cleared.

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user@host> show tcp-forwarding status
Listening on: [default:]203.0.113.50:8020
    Status: listening
    Total Bytes Rx: 292 Tx: 112
  Forwarding to: [default:]198.51.100.1:49
    Total Bytes Rx: 112 Tx: 292
  Allowed Source Prefixes:
    192.0.0.1/24
  Connections Max: 4 Active: 3
    Source: 192.0.0.2:55000
      Listening: connected Bytes Rx: 380 Tx: 223
      Forwarding: connected Bytes Rx: 223 Tx: 380
    Source: 192.0.0.3:55000
      Listening: connected Bytes Rx: 855 Tx: 411
      Forwarding: connected Bytes Rx: 411 Tx: 855
    Source: 192.0.0.4:56022
      Listening: connected Bytes 642 Tx: 350
      Forwarding: connected Bytes Rx: 350 Tx: 642

user@host> clear tcp-forwarding connections source-address 192.0.0.2 source-port 55000
user@host> show tcp-forwarding status
Listening on: [default:]203.0.113.50:8020
    Status: listening
    Total Bytes Rx: 292 Tx: 112
  Forwarding to: [default:]198.51.100.1:49
    Total Bytes Rx: 112 Tx: 292
  Allowed Source Prefixes:
    192.0.0.1/24
  Connections Max: 4 Active: 2
    Source: 192.0.0.3:55000
      Listening: connected Bytes Rx: 855 Tx: 411
      Forwarding: connected Bytes Rx: 411 Tx: 855
    Source: 192.0.0.4:56022
      Listening: connected Bytes 642 Tx: 350
      Forwarding: connected Bytes Rx: 350 Tx: 642

Release Information

Command introduced in Junos OS Release 18.3R1.

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