The telnet client-source command configures a source for the Telnet client to establish a connection to the Telnet server.
The undo telnet client-source command deletes the configured source.
By default, the IPv4 source address of the Telnet client is 0.0.0.0, the IPv6 source address of the Telnet client is::.
telnet client-source { { -a source-ip-address } | { -i { interface-type interface-number | interface-name } } }
telnet ipv6 client-source -a ipv6-address [ -vpn-instance ipv6-vpn-instance-name ]
undo telnet client-source
undo telnet ipv6 client-source [ -a ipv6-address [ -vpn-instance ipv6-vpn-instance-name ] ]
| Parameter | Description | Value |
|---|---|---|
| -a source-ip-address |
Specifies the source IP address of the Telnet client. |
The value is in the decimal format. |
| -a ipv6-address |
Specifies the source IPv6 address of the Telnet client. |
The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X. |
| -i interface-name |
Specifies the source interface name for the Telnet client to establish a connection to the server. |
- |
| interface-type |
Specifies the type of the source interface for the Telnet client to establish a connection to the server. |
- |
| interface-number |
Specifies the number of the source interface for the Telnet client to establish a connection to the server. |
- |
| ipv6 |
Specifies the IPv6 protocol. |
- |
| -vpn-instance ipv6-vpn-instance-name |
Specifies the name of a VPN instance to which the Telnet server belongs. Before specifying the parameter vpn-instance ipv6-vpn-instance-name, ensure that a VPN instance has been configured. |
The value is a string of 1 to 31 case-sensitive characters, spaces not supported. |
Usage Scenario
When you run the telnet command to log in to a Telnet server without specifying a source address or interface, the source address or interface configured using the telnet client-source command is adopted by default. If you run the telnet command and specify a source address or interface, you can log in to the Telnet server using the specified source address or interface.
After a bound source interface is deleted, the interface configuration specified using the telnet client-source command will not be cleared but does not take effect. If you configure the source interface with the same name again, the interface configuration specified using the telnet client-source command is updated and the function restores.
Precautions
If the specified source interface has been bound to a VPN instance, the client is automatically bound to the same VPN instance.
<HUAWEI> system-view [~HUAWEI] telnet client-source -a 10.1.1.1
<HUAWEI> system-view [~HUAWEI] interface loopback 0 [*HUAWEI-LoopBack0] ip address 10.1.1.1 24 [*HUAWEI-LoopBack0] quit [*HUAWEI] telnet client-source -i loopback0