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103
RIP
RIP, Router Information Protocol, is a simple Interior Gateway Protocol (IGP). RIP has two versions,
RIP-1 and RIP-2.
Interface:
the interface the rule applies to.
Version:
select the RIP version, there are two versions, RIP-1 and RIP-2.
Operation:
RIP has two operation mode.
L
Passive:
only receive the routing information broadcasted by other routers and modifies its
routing table according to the received information.
L
Active:
working in this mode, the router sends and receives RIP routing information and
modifies routing table according to the received information.
Enable:
check the checkbox to enable RIP rule for the interface.
Note:
RIP can not be configured on the WAN interface which has NAT enabled (such as PPPoE).
Click
Apply/Save
to apply your settings.
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104
DNS
DNS, Domain Name System, is a distributed database of TCP/IP application. DNS provides
translation of Domain name to IP.
You can select DNS Server from available WAN Interfaces or use the static DNS server by set the
IP yourself.
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105
Dynamic DNS
The Dynamic DNS function allows you to alias a dynamic IP address to a static hostname, allowing
users whose ISP does not assign them a static IP address to use a domain name. This is especially
useful for hosting servers via your ADSL connection, so that anyone wishing to connect to you may
use your domain name, rather than having to use your dynamic IP address, which changes fromtime
to time. This dynamic IP address is the WAN IP address of the router, which is assigned to you by
your ISP.
Click
Add
to add dynamic DNS.
You will first need to register and establish an account with the Dynamic DNS provider using their
website, for example
Dynamic DNS Server:
Select the DDNS service you have established an account with.
Interface:
select the interface you want to use for this Domain name (Hostname).
Hostname, Username and Password:
Enter your registered domain name and your username and
password for this service.
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106
DSL
This screen allows you to set DSL parameters. DSL knowledge is required to configure these
settings. Contact your ISP to make sure that these parameters are correct.
Modulation:
There are 7 modes “G.Dmt”, “G.lite”, “T1.413”, “ADSL2”, “AnnexL”, ”ADSL2+”,
“AnnexM” that user can select for this connection.
Phone line pair:
This is for reserved only. You can choose "Inner Pair" or "Outer Pair".
Capability:
There are 2 options “Bitswap Enable” and “SRA Enable” that user can select for this
connection.
L
Bitswap Enable:
Allows bitswaping function.
L
SRA Enable:
Allows seamless rate adaptation.
Click Apply to confirm the settings.
Click
to future configure DSL.
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Select the Test Mode, or leave it as default.
Tone Selection:
suggesting you to leave it as default or let it configured by an advanced user.
The frequency band of ADSL is split up into 256 separate tones, each spaced 4.3125 kHz apart.
With each tone carrying separate data, the technique operates as if 256 separate modems were
running in parallel. The tone range is from 0 to 31 for upstream and from 32 to 255 for
downstream
。
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