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4 ip filtering – SENA NEMO10-SK User Manual

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3.4 IP Filtering

The NEMO10 has an IP address based filtering feature to prevent unauthorized remote hosts from

accessing NEMO10. The user can allow one of the following scenarios by changing the parameter

settings:

- Only one host of a specific IP address can access the NEMO10

- Hosts on the a specific subnet can access the NEMO10

- Any host can access the NEMO10

The user may allow a host or a group of hosts to access the NEMO10. Then the user must enter the

IP address and subnet to be allowed for accessing.

To allow only a specific host to the NEMO10, enter the IP address of the specific host and just give

255.255.255.255 for the subnet. To allow any hosts to the NEMO10, give 0.0.0.0 for both of the IP

address and subnet. Please refer to Table 3-2 for more details.

Table 3-2 Input examples of allowed remote hosts

Input format

Allowable Hosts

Base Host IP address

Subnet mask

Any host

0.0.0.0

0.0.0.0

192.168.1.120

192.168.1.120

255.255.255.255

192.168.1.1 ~ 192.168.1.254

192.168.1.0

255.255.255.0

192.168.0.1 ~ 192.168.255.254

192.168.0.0

255.255.0.0

192.168.1.1 ~ 192.168.1.126

192.168.1.0

255.255.255.128

192.168.1.129 ~ 192.168.1.254

192.168.1.128

255.255.255.128

For example, to allow only a 192.168.1.120 host for accessing, enter the following commands,

1. DHCP mode

> set ip dhcp 192.168.1.120 255.255.255.255
OK
> save
OK
> reboot

2. Static IP mode (ip : 192.168.161.5 , subnet : 255.255.0.0 , gateway :192.168.1.1)

> set ip static 192.168.161.5 255.255.0.0 192.168.1.1 192.168.1.120 255.255.255.255
OK
> save
OK
> reboot