3Com Switch 7750 Configuration Guide

78 CHAPTER 8: USER CONTROL
Controlling Telnet Users
by Source and
Destination IP Addresses
Controlling Telnet users by source and destination IP addresses is achieved by
applying advanced ACLs, which are numbered from 3000 to 3999. Refer to
“Defining Advanced ACLs” on page 642.
Quit to system view quit -
Enter user interface view user-interface [ type ]
first-number [ last-number ]
-
Apply the ACL to control
Telnet users by source IP
addresses
acl acl-number { inbound |
outbound }
Required
The inbound keyword
specifies to filter the users
trying to Telnet to the current
switch.
The outbound keyword
specifies to filter users trying
to Telnet to other switches
from the current switch.
Table 36 Control Telnet users by source IP addresses
Operation Command Description
Table 37 Control Telnet users by source and destination IP addresses
Operation Command Description
Enter system view system-view -
Create an advanced ACL or
enter advanced ACL view
acl { number acl-number |
name acl-name advanced }
[ match-order { config |
auto }]
As for the acl number
command, the config
keyword is specified by
default.
Define rules for the ACL rule [ rule-id ]{permit |
deny } protocol
[ source { source-addr
wildcard | any }]
[ destination { dest-addr
dest-mask | any }]
[ source-port operator port1
[ port2 ]] [destination-port
operator port1 [ port2 ]]
[ icmp-type type code ]
[ established ]
[[precedence precedence |
tos tos ]* | dscp dscp ]
[ fragment ] [ time-range
time-name ]
Required
You c
an define rules as
needed to filter by specific
source and destination IP
addresses.
Quit to system view quit -
Enter user interface view user-interface [ type ]
first-number [ last-number ]
-
Apply the ACL to control
Telnet users by specified
source and destination IP
addresses
acl acl-number { inbound |
outbound }
Required
The inbound keyword
specifies to filter the users
trying to Telnet to the current
switch.
The outbound keyword
specifies to filter users trying
to Telnet to other switches
from the current switch.