Digi Connect IT 4 User Manual page 247

Serial port
To limit access to specified IPv4 addresses and networks:
n
(config)> add serial port1 udp 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 udp 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 Connect IT 4
n
device:
(config)> add serial port1 udp acl interface end value
(config)>
Where value is an interface defined on your device.
Digi Connect IT® 4 User Guide
setup
(config)>
Repeat this step to include additional firewall zones.
Display a list of available interfaces:
Use ... network interface ? to display interface information:
(config)> ... network interface ?
Interfaces
Additional Configuration
-------------------------------------------
defaultip
defaultlinklocal
lan
loopback
modem
wan
Configure UDP serial mode
Default IP
Default Link-local IP
LAN
Loopback
Modem
WAN
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