Asus Router RX3042H User Manual

RX3042H User's Manual DHCP Server Confi guration
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Figure 6.3. Fixed DHCP Lease Confi guration Page
6.1.5.2  Add a Fixed DHCP Lease
To add a fi xed DHCP lease, follow the instructions below:
1.  Open  the  Fixed  DHCP  Lease  confi guration  page,  as  shown  in  Figure 6.3, by clicking Advanced ->DHCP Server menu.
2.  Enter  the  MAC  address  and  the  desired  IP  address  of  the  host  requiring a fi xed IP address. Table 6.2 describes the fi xed DHCP 
lease confi guration parameters in detail....

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DHCP  Lease  configuration  page  by  clicking  Advanced  ->DHCP 
Server menu
6.2  DNS
6.2.1  About DNS 
Domain Name System (DNS) servers map the user-friendly domain 
names  that  users  type  into  their  Web  browsers  (e.g.,  “yahoo.com”) 
to  the  equivalent  numerical  IP  addresses  that  are  used  for  Internet 
routing.
When a PC user types a domain name into a browser, the PC must 
first  send  a  request  to  a  DNS  server  to  obtain...

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Note:  If  you  specify  the  actual  DNS  addresses  on  the 
PCs or in the DHCP pool, the DNS relay feature is not  used.
6.2.3  Configuring DNS Relay
When  you  specify  the  deviceʼs  LAN  port  IP  address  as  the  DNS 
address,  then  the  Internet  Security  Router  automatically  performs 
“DNS  relay”;  i.e.,  because  the  device  itself  is  not  a  DNS  server,  it 
forwards  domain  name  lookup  requests  from  the  LAN  PCs  to  a...

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DNS  address  (other  than  the  LAN  IP  address)  in  a DHCP  pool  or  statically  on  a  PC,  then  that  address 
will be used instead of the DNS relay address. 

RX3042H User's Manual Routing
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7  Routing
You  can  use  Configuration  Manager  to  define  specific  routes 
for  your  Internet  and  network  data  communication.  This  chapter 
describes  basic  routing  concepts  and  provides  instructions  for 
creating  static  routes.  Note  that  most  users  do  not  need  to  define 
static routes.
7.1  Overview of IP Routes
The  essential  challenge  of  a  router  is:  when  it  receives  data 
intended  for  a  particular  destination,  which...

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7.2 Dynamic Routing using RIP (Routing   
  Information Protocol)
RIP  enables  routing  information  exchange  between  routers;  thus, 
routes  are  updated  automatically  without  human  intervention. 
It  is  recommended  that  you  enable  RIP  in  the  System  Services 
Configuration Page as shown in Figure 10.1.
Figure 7.1.  RIP Configuration Page
7.2.1  RIP Configuration Parameters
The  following  table  defines  the  available  configuration  parameters 
for...

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FieldDescription
Passive ModeEnable this mode if RIP configured for this interface 
will only receive routing information from other 
routers and not send routing information to other 
routers. Disable this mode if you want this interface 
to send and receive routing information to/from 
other routers.
RIP Version 
(Send) Select the RIP version for sending the routing 
information. Three options are available: Version 1. 
Version 2 and Both.
RIP Version 
(Receive)...

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information. Available options are Version 1, Version 2 and Both.
6.  Choose  whether  authentication  is  required  by  clicking  the 
Enable or Disable radio button.
7.  (Optional)  If  authentication  is  enable,  you  must  also  select  authentication mode and the desired authentication key.
8.  Click Apply to save the settings.
7.3  Static Route
Figure 7.2.  Static Route Configuration Page
7.3.1  Static Route Configuration Parameters
The  following  table...

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FieldDescription
Subnet 
Mask
Indicates which parts of the destination address refer to the 
network and which parts refer to a computer on the network. 
Refer to Appendix 11, for an explanation of network masks. 
The default route uses a 0.0.0.0 for subnet mask.
GatewayGateway IP address
InterfaceAvailable  option  include AUTO,  Eth0  (LAN),  Eth1  (WAN), 
PPPoE:0  (unnumbered),  PPPoE:1  (1st  PPPoE  session), 
PPPoE:2  (2nd  PPPoE  session).  These  options  are...

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7.3.3  Deleting Static Routes
Figure 7.4.  Sample Routing Table
Follow  these  instructions  to  delete  a  static  route  from  the  routing 
table.1.  Open  the  Static  Route  configuration  page  by  clicking  the 
Advanced ->Static Route menu.
2.  Click  on  the 
  icon  of  the  route  to  be  deleted  in  the  Routing 
Table.
WARNING  D o   n o t   r e m o v e   t h e   r o u t e   f o r   d e f a u l t 
g a t e w a y   u n l e s s   y o u   k n o w   w h a t...