3com S7906E 설치 설명서

 

7-1 

When specifying source IP address/interface for Telnet packets, go to these sections for information you 

are interested in: 

z 

z 

Specifying Source IP address/Interface for Telnet Packets 

z 

To improve security and make it easier to manage services, you can specify source IP 

addresses/interfaces for Telnet clients. 

Usually, VLAN interface IP addresses , management interface and Loopback interface IP addresses 

are used as the source IP addresses of Telnet packets. After you specify the IP address of a VLAN 

interface , management interface or a Loopback interface as the source IP address of Telnet packets, all 

the packets exchanged between the Telnet client and the Telnet server use the IP address as their 

source IP addresses, regardless of the ports through which they are transmitted. In such a way, the 

actual IP addresses used are concealed. This helps to improve security. Specifying source IP 

address/interfaces for Telnet packets also provides a way to successfully connect to servers that only 

accept packets with specific source IP addresses. 

The configuration can be performed in user view and system view. The configuration performed in user 

view only applies to the current session. Whereas the configuration performed in system view applies to 

all the subsequent sessions. Priority in user view is higher than that in system view. 

Follow these steps to specify source IP address/interface for Telnet packets in user view: 

Specify source IP 
address/interface for Telnet 
packets (the switch operates as 
a Telnet client) 

telnet remote-system 
[ port-number ] [ source { ip 
ip-address | interface 
interface-type 
interface-number } ] 

Optional 

By default, no source IP 
address/interface is specified. 

 

Follow these steps to specify source IP address/interface for Telnet packets in system view: 

Enter system view 

system-view 

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