Restricting Remote Access To The Device To Specific; Ip Addresses - Dell PowerConnect B-RX Configuration Manual

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Restricting remote access to management functions
Configuring hardware-based remote access filtering on the device
The following is an example of configuring device to perform hardware filtering for Telnet access.
BigIron RX(config)# vlan 3 by port
BigIron RX(config-vlan-3)# untagged ethe 3/1 to 3/5
BigIron RX(config-vlan-3)# router-interface ve 3
BigIron RX(config-vlan-3)# exit
BigIron RX(config)# interface ve 3
BigIron RX(config-ve-1)# ip address 10.10.11.1 255.255.255.0
BigIron RX(config-ve-1)# exit
BigIron RX(config)# access-list 10 permit host 10.10.11.254
BigIron RX(config)# access-list 10 permit host 192.168.2.254
BigIron RX(config)# access-list 10 permit host 192.168.12.254
BigIron RX(config)# access-list 10 permit host 192.64.22.254
BigIron RX(config)# access-list 10 deny any
BigIron RX(config)# telnet access-group 10 vlan 3
BigIron RX(config)# ssh access-group 10 vlan 3
BigIron RX(config)# web access-group 10 vlan 3
BigIron RX(config)# snmp-server community private rw 10 vlan 3
In this example, a Layer 3 VLAN is configured as a remote-access management VLAN and a router
interface. The IP address specified for the router interface becomes the management IP address
of the VLAN.

Restricting remote access to the device to specific

IP addresses

By default, a device does not control remote management access based on the IP address of the
managing device. You can restrict remote management access to a single IP address for the
following access methods.
•
•
•
In addition, if you want to restrict all three access methods to the same IP address, you can do so
using a single command.
The following examples show the CLI commands for restricting remote access. You can specify only
one IP address with each command. However, you can enter each command ten times to specify
up to ten IP addresses.
NOTE
You cannot restrict remote management access using the Web management interface.
Restricting Telnet access to a specific IP address
To allow Telnet access to the device only to the host with IP address 209.157.22.39, enter the
following command.
BigIron RX(config)# telnet client 209.157.22.39
Syntax: [no] telnet client <ip-addr> | ipv6 <ipv6-addr>
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Telnet access
Web Management access
SNMP access
BigIron RX Series Configuration Guide
53-1002253-01