DX-VS1UE User’s Manual
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(4) xDSL Interface
If DX-VS1UE is connected on x
DSL line and needs PPPoE proce
ss, administrator should select net
work interface as ‘xDSL (PPPo
E)’. And administrator should set
user ID and password for PPPoE.
ID and password may be acquired
D and password may be acquired from your ISP that installed the line. And DX-VS1UE can get an I
P address when it is connected on xDSL line.
4)
Security Configuration
This is to filter a certain IP addresses from accessing DX-VS1UE based on network masking.
(1) IP/Subnet Filtering Mode
You may allow or deny a certain user to
access your DX-VS1UE with enabling this
menu.
Default Policy
This is used to decide the principle of
“IP/Subnet Filtering Mode” between allow
and deny.
If you allow anyone except a few users to
access your DX-VS1UE, you should select
default policy as ‘allow’ and register a few
users as denied users. If you deny all users
except for a few users to access your DX-
VS1UE, you should select default policy as ‘deny’ and register a few users as allowed users.
How to register allowed/denied user in the list
Network masking is used to mask network ID for every existing IP address in the world.
Therefore, the IP addresses that have the same network ID are applied with a command of
‘Allow’ or ‘Deny’. The masked bits are considered as network ID.
If a masking number is 4, the 4 bits from the first bit are masked as network ID comparing with the
provided IP address before, and any IP address that has the same binary number on the first 4 bits are
to be filtered from DX-VS1UE.
Note
: To explain and understand easily on IP address, the first byte of IP address is marked as
IP address
masking
Allow/Deny
ENGLISH
