Digi IX30 User Manual page 227

Serial port
i. Enable SSH:
(config)>serial port1 service telnet enable true
(config)>
ii. Set the port to be used for ssh communications:
(config)>serial port1 service telnet port int
(config)>
where int is any integer between 1 and 65535. The default is 3001.
iii. Enable TCP keep-alive messages:
(config)>serial port1 service telnet keepalive true
(config)>
iv. Enable TCP nodelay messages:
(config)>serial port1 service telnet nodelay true
(config)>
v. (Optional) Configure access control:
IX30 User Guide
To limit access to specified IPv4 addresses and networks:
n
(config)> add serial port1 service telnet acl address end
value
(config)>
Where value can be:
A single IP address or host name.
l
A network designation in CIDR notation, for example, 192.168.1.0/24.
l
any: No limit to IPv4 addresses that can access the service-type.
l
Repeat this step to list additional IP addresses or networks.
To limit access to specified IPv6 addresses and networks:
n
(config)> add serial port1 service telnet acl address6 end
value
(config)>
Where value can be:
A single IP address or host name.
l
A network designation in CIDR notation, for example, 2001:db8::/48.
l
any: No limit to IPv6 addresses that can access the service-type.
l
Repeat this step to list additional IP addresses or networks.
To limit access to hosts connected through a specified interface on the IX30
n
device:
Configure Remote Access mode
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