H3C Technologies H3C S7500E Series Switches - Manual (Page 215)

11-11
Specifying a Source IP address/Interface for the SSH Client
This configuration task allows you to specify a source IP address or interface for the client to access
the SSH server, improving service manageability.
To do… Use the command… Remarks
Enter system view system-view —
Specify a
source IPv4
address or
interface for
the SSH client
ssh client source { ip ip-address | interface
interface-type interface-number }
Specify a
source IP
address or
interface for
the SSH client
Specify a
source IPv6
address or
interface for
the SSH client
ssh client ipv6 source { ipv6 ipv6-address |
interface interface-type interface-number }
Required
Select either
approach
By default, an SSH
client uses the IP
address of the
interface specified
by the route of the
device to access
the SSH server.
Configuring Whether First-time Authentication is Supported
When the device connects to the SSH server as an SSH client, you can configure whether the device
supports first-time authentication.
z With first-time authentication, when an SSH client not configured with the server host public key
accesses the server for the first time, the user can continue accessing the server, and save the
host public key on the client. When accessing the server again, the client will use the saved
server host public key to authenticate the server.
z Without first-time authentication, a client not configured with the server host public key will deny to
access the server. To access the server, a user must configure in advance the server host public
key locally and specify the public key name for authentication.
Enable the device to support first-time authentication
Follow these steps to enable the device to support first-time authentication:
To do... Use the command… Remarks
Enter system view system-view —
Enable the device to support
first-time authentication
ssh client first-time enable
Optional
By default, first-time authentication
is supported on a client.
Disable first-time authentication
For successful authentication of an SSH client not supporting first-time authentication, the server host
public key must be configured on the client and the public key name must be specified.
Follow these steps to disable first-time authentication: