Digi IX20 User Manual page 673

Services
n 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 access through additional interfaces.
n To limit access based on firewall zones:
a. Click Zones.
b. For Add Zone, click .
c. For Zone, select the appropriate firewall zone from the dropdown.
d. Click  again to allow access through additional firewall zones.
6. Multicast DNS (mDNS) is disabled by default. mDNS is a protocol that resolves host names in
small networks that do not have a DNS server. To enable mDNS, click Enable mDNS.
7. Click Apply to save the 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 access the Admin CLI.
2. At the command line, type config to enter configuration mode:
> config
(config)>
3. Configure access control:
n To limit access to specified IPv4 addresses and networks:
(config)> add service telnet acl address end value
(config)>
Where value can be:
A single IP address or host name.
l
A network designation in CIDRnotation, for example, 192.168.1.0/24.
l
any: No limit to IPv4 addresses that can access the telnet service.
l
Repeat this step to list additional IP addresses or networks.
n To limit access to specified IPv6 addresses and networks:
(config)> add service telnet acl address6 end value
(config)>
Where value can be:
A single IP address or host name.
l
A network designation in CIDRnotation, for example, 2001:db8::/48.
l
any: No limit to IPv6 addresses that can access the telnet service.
l
IX20 User Guide
See Firewall configuration for information about firewall zones.
Configure telnet access
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