Services Configuretelnet access
IX20 User Guide
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To limit access to hosts connected through a specified interface on the IX20 device:
a. Click Interfaces.
b. For Add Interface, click .
c. For Interface, select the appropriate interface from the dropdown.
d. Click again to allow accessthrough additional interfaces.
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To limit access based on firewall zones:
a. Click Zones.
b. For Add Zone, click .
c. For Zone, select the appropriate firewall zonefrom the dropdown.
See Firewall configuration for information about firewall zones.
d. Click again to allow accessthrough additional firewall zones.
6. Multicast DNS(mDNS) is disabled by default. mDNSis a protocol that resolveshost namesin
small networksthat do not have a DNSserver. To enable mDNS, click Enable mDNS.
7. Click Apply to savethe configuration and apply the change.
Command line
1. Select the device in Remote Manager and click Actions> Open Console, or log into the IX20
local command line as a user with full Admin access rights.
Depending on your device configuration, you may be presented with an Access selection
menu. Type admin to accessthe Admin CLI.
2. At the command line, type config to enter configuration mode:
> config
(config)>
3. Configure access control:
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To limit access to specified IPv4 addresses and networks:
(config)> add service telnet acl address end value
(config)>
Where value can be:
l
Asingle IPaddress or host name.
l
Anetwork designation in CIDRnotation, for example, 192.168.1.0/24.
l
any: No limit to IPv4 addresses that can access the telnet service.
Repeat thisstep to list additional IPaddressesor networks.
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To limit access to specified IPv6 addresses and networks:
(config)> add service telnet acl address6 end value
(config)>
Where value can be:
l
Asingle IPaddress or host name.
l
Anetwork designation in CIDRnotation, for example, 2001:db8::/48.
l
any: No limit to IPv6 addresses that can access the telnet service.