3Com Router WL-602 User Manual

							Advanced99
RIPRIP (Routing Information Protocol) - RIP allows the network administrator 
to set up routing information on one RIP-enabled device (this Router), 
and send that information to all RIP-enabled devices on the network. 
Figure 80   RIP Parameter Screen
You can set up RIP independently on both LAN and WAN interfaces.
1Check the Enable RIP checkbox. 
2Check the Enable Auto summary checkbox. Auto summarization sends 
simplified routing data to other RIP-enabled devices rather than full 
routing data.
3Select the Operation Mode:
■Disable — RIP is not enabled for the WAN or LAN interface.
■Enable — RIP is enabled for the WAN or LAN interface. The router will 
transmit RIP update information to other RIP-enabled devices.
■Silent — RIP is enabled, however the Router only receives RIP update 
messages, it will not transmit any messages itself.
4In the Version field, select 1 or 2.
3Com recommends that you only use RIPv1 if there is an existing 
RIP-enabled device on your network that does not support RIPv2. In all 
other cases, you should use RIPv2. 
						

							100CHAPTER 5: CONFIGURING THE ROUTER
5Use the Poison Reverse drop-down menu to enable or disable Poison 
Reverse on the Router. Enabling Poison Reverse on your Router allows it 
to indicate to other RIP-enabled devices that they have both routes that 
point to each other, preventing data loops.
6Use the Authentication Required field to choose the mode of 
authentication:
■None — Switches off authentication on the specified interface.
■Password — An unencrypted text password that needs to be set on all 
RIP-enabled devices connected to this Router. RIP information is not 
shared between devices whose passwords do not match.
7In the Password field, enter the required password.
8Click Apply. 
						

							Advanced101
DDNSThe Router provides a list of dynamic DNS providers for you to choose 
from. Dynamic Domain Name Server (DDNS) enables you to map a static 
domain name to a dynamic IP address. This function allows you to create 
a hostname that points to your dynamic IP or static IP address or URL. 
Before you set up DDNS, you must obtain an account, password or key 
and static domain name from your DDNS provider. The Router supports 
five DDNS providers: 
■DynDNS.org
■TZO.com
■Dt DNS.com
■No-IP.com
■Zoneedit.com
Figure 81   Dynamic Domain Name Server (DDNS) Screen
1Check Enable DDNS. 
2Select the provider, and then enter the necessary information provided by 
your DDNS provider. 
3Click Apply.  
						

							102CHAPTER 5: CONFIGURING THE ROUTER
SNMPSNMP (Simple Network Management Protocol) allows remote 
management of your Router by a PC that has an SNMP management 
agent installed.
Check the Enable SNMP box, the table will appear. 
Figure 82   SNMP Screen
Enter the System Contact, System Name, and System Location 
information. 
To Configure SNMP Community:
1In the Community column, enter the name of the SNMP communication 
channel. Your SNMP management agent needs to be configured with this 
name so that it can communicate with your Router.
2In the Access column, select Read to allow the management agent to 
collect data (for example, bandwidth usage) from your Router. Select 
Write to allow the management agent to change the configuration of 
your Router.
3Check the appropriate Valid checkbox to enable the communication 
channel. 
						

							Advanced103
You can configure your Router to send status messages to the SNMP 
management agent if a problem occurs on the network. To configure 
SNMP traps:
1In the IP Address field, enter the IP address of the PC to which you want 
your Router to send status messages. 
2In the Community field, enter the name of the SNMP communication 
channel to which you want your Router to send status messages.
3Set the Version field to match the version of trap messaging that your 
SNMP management agent supports. The Router supports V1 and V2c 
trap messaging.
SyslogUsing third party syslog software, this Syslog Server tool will automatically 
send the Router log to the specified server IP address.
Figure 83   Syslog Server Screen
1Check the Enable Syslog Server checkbox.
2Enter the Server LAN IP Address in the space provided. 
3Click Apply.  
						

							104CHAPTER 5: CONFIGURING THE ROUTER
Proxy ARPProxy ARP is the technique in which one host, usually a Router, answers 
ARP requests intended for another machine. By “faking” its identity, the 
Router accepts responsibility for routing packets to the “real” or intended 
destination. This heightens the security for your network. 
Figure 84   Proxy ARP Screen
1Check the Enable ProxyARP box. 
2Enter the corresponding IP address in the IP Address From and IP Address 
To fields. 
3Click Apply.  
						

							Advanced105
QoS SettingsThe QoS (Quality of Service) function allows you to differentiate your 
network traffic and provide it with high-priority forwarding service.
The bandwidth gap between LAN and WAN may significantly degrade 
performance of critical network applications, such as VoIP, gaming, and 
VPN. This QoS function allows you to classify traffic of applications and 
provides them with differentiated services (Diffserv). 
Figure 85   QoS Settings Screen 
1Check the Enable QoS box, and enter the value for WAN Out Bandwidth.
2Define the minimum percentage of bandwidth for each type of traffic.
3Check the corresponding box to allow more bandwidth allocation.
4Click Apply. 
Note that once QoS is enabled, a new tab, Traffic mapping, will become 
visible, see Figure 86.  
						

							106CHAPTER 5: CONFIGURING THE ROUTER
Tr a f f i c  m a p p i n gUp to 16 rules can be defined to classify your network traffic into Diffserv 
forwarding groups and outgoing connections. 
Figure 86   Traffic Mapping Screen
Click Add, the Edit Traffic Class screen will appear. 
Figure 87   Edit Traffic Class Screen 
1Define the Rule name.
2Select the traffic type from drop-down menu.
3Select the forwarding group from the Map to Forwarding Group 
drop-down menu. 
4Select the value from the Remark DSCP as drop-down menu. 
5Click the ADVANCED CONFIG button, a more detailed Edit Traffic class 
screen will appear, see Figure 88. 
						

							Advanced107
Figure 88   Detailed Edit Traffic Class Screen
Enter the information, then click Apply to make the settings to take 
effect.  
						

							108CHAPTER 5: CONFIGURING THE ROUTER
VPNThe Router has a Virtual Private Network (VPN) feature that provides a 
secure link between remote users and the corporate network by 
establishing an authenticated and encrypted tunnel for passing secure 
data over the Internet. The Router supports three modes of VPN 
operation: 
■IPSec (IP Security) — provides IP network-layer encryption. IPSec can 
support large encryption networks (such as the Internet) by using 
digital certificates for device authentication. When setting up an IPSec 
connection between two devices, make sure that they support the 
same encryption method.
Note: Enabling IPSec VPN disables pass-through to IPSec and L2TP over 
IPSec Virtual Servers on the LAN. Pass-through outbound from clients on 
the LAN to servers on the Internet is unaffected.
■PPTP (Point-to-Point Tunneling Protocol) — provides a secure tunnel 
for remote client access to a PPTP security gateway. It is not as secure 
as IPSec but is easy to administer. PPTP does not support gateway to 
gateway connections and is only suitable for connecting remote users. 
Check that your ISP’s routers support this protocol before you use it.
Note: Enabling the PPTP Server disables PPTP pass-through to a Virtual 
Server on the LAN. Pass-through outbound from clients on the LAN to 
servers on the Internet is unaffected.
■L2TP over IPSec — this is a combination of two protocols. L2TP is used 
to authenticate a user, and IPSec is used to encrypt data. L2TP over 
IPSec does not support gateway to gateway connections and is only 
suitable for connecting remote users. Check that your ISP’s routers 
support this protocol before you use it.
Note: Enabling L2TP over IPSec disables pass-through to IPSec and L2TP 
over IPSec Virtual Servers on the LAN. Pass-through outbound from 
clients on the LAN to servers on the Internet is unaffected.
Using the VPN Tunnel Configuration screen, you can add new IPSec, L2TP 
over IPSec and PPTP connections, and to edit existing connections. When 
adding or editing values on this screen remember that both ends of the 
connection must contain the same information.