NEC NWA-008869-001 User Manual
CHAPTER 6 MANAGEMENT AND MAINTENANCE
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NWA-008869-001 Rev.1.0
atch6001.fm
TELNET SECURITY
The telnet-server ip enable or telnet-server ipv6 command permits all hosts connected to the In-Skin Rout-
er to establish a connection. You can increase the security of telnet in two ways:
(1) Change the telnet port number
(2) Permit only a specific host to gain access with telnet
er to establish a connection. You can increase the security of telnet in two ways:
(1) Change the telnet port number
(2) Permit only a specific host to gain access with telnet
Changing the telnet port number
In this example, the port number 2323 is set.
In this example, the port number 2323 is set.
Permitting only a specific host to gain access with telnet
In this example, only the source address “1.1.1.1/32” is permitted to gain access. “tokyo” is set as an access
list name.
In this example, only the source address “1.1.1.1/32” is permitted to gain access. “tokyo” is set as an access
list name.
Router # enable
− config
Router (config) # telnet
− server ip port 2323
Router (config) #
Enter
Enter
Router # enable
− config
Router (config) # ip access
− list tokyo permit ip src 1.1.1.1/32 dest any
Router (config) # telnet
− server ip access − list tokyo
Router (config) #
Enter
Enter
Enter
TELNET SECURITY