MER Routers

Basic Internet Access (Static IP) Web-Based Configuration Examples

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contents

Introduction· 1

Prerequisites· 1

Example: Configuring basic Internet access settings (static IP) for the router 1

Network configuration· 1

Software versions used· 1

Restrictions and guidelines· 1

Procedures· 1

Fast configuration· 2

Network configuration· 5

Verifying the configuration· 7

 

Introduction

The following information provides an example of the Web-based configuration for basic Internet access (static IP) on an MER router.

Prerequisites

Procedures and information in the document might be slightly different depending on the software or hardware version of the device.

The configuration examples were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.

The following information is provided based on the assumption that you have basic knowledge of DHCP and NAT.

Example: Configuring basic Internet access settings (static IP) for the router

Network configuration

As shown in Figure 1, the device acts as the enterprise network's egress router, with all external interface modes set to single-WAN mode. Configure Internet access through a static IP address. Configure the router for the user's PC to access the Internet through the router.

Figure 1 Network diagram

 

Software versions used

This example applies to Comware 7-based MER series routers. This configuration example was created and verified on R6749P14 of the H3C MER8300. Specific operations might vary slightly depending on the product model and software version.

Restrictions and guidelines

The address range of the address pool specified on the LAN interface cannot be in the same subnet as the WAN interface IP address on the device.

Procedures

You can use either of the following methods to configure Internet access:

·     Fast configuration: Supports key parameter configuration for both single-WAN and dual-WAN scenarios, achieving rapid Internet access. This configuration method is simple and suitable for general Internet usage needs.

·     Network configuration: Support configuration for single-WAN, dual-WAN, and multi-WAN scenarios with a richer array of parameters. This configuration method suits scenarios with higher network requirements, allowing for more customized settings to optimize network performance.

Fast configuration

Configuring the WAN access scenario

In this example, the router is set up in single-WAN mode, and the configuration steps are as follows:

1.     Log in to the router's Web management interface and click Fast Configuration from the left navigation pane.

2.     Enter the scenario selection configuration page and select the single-WAN scenario.

3.     Click Next.

Figure 2 Configuring the WAN access scenario

 

Configuring WAN interface parameters

1.     Select physical interface WAN1 (GE1) that connects to the external network from the Line 1 field.

2.     Select Fixed IP from the Link mode field.

3.     Enter static IP address 10.1.1.1 in the IP address field.

4.     Enter subnet mask 255.255.255.0 for the IP address in the IP mask field.

5.     Enter gateway address 10.1.1.254 in the Gateway address field.

6.     Enter DNS server addresses 114.114.114.114 and 8.8.8.8 in the DNS1 and DNS2 fields, respectively.

7.     Enable NAT address translation.

8.     Click Next.

Figure 3 Single WAN Configuration

 

Configuring LAN interface parameters

1.     Specify the LAN IP address as 192.168.10.1 and the subnet mask as 255.255.255.0.

2.     Enable the DHCP service.

3.     Configure the DHCP service address range for allocation as 192.168.10.1 to 192.168.10.254.

4.     Specify excluded addresses as needed to prevent the device from assigning certain IP addresses within the address pool range (such as gateway addresses) to clients. In this example, exclude the gateway address 192.168.10.1 from client IP address allocation.

5.     Enter DNS server addresses 114.114.114.114 and 8.8.8.8 in the DNS1 and DNS2 fields, respectively.

6.     Click Next.

Figure 4 LAN configuration

 

Saving the configuration

Click Finish to save the quick settings.

Figure 5 Saving the configuration

 

Network configuration

Configuring the WAN access scenario

In this example, the router is set up in single-WAN mode, and the configuration steps are as follows:

1.     Log in to the router's Web management interface and select Network > WAN Settings from the left navigation pane.

2.     Click the Scene tab, and select the single-WLAN scenario.

3.     Select physical interface WAN1 (GE1) that connects to the external network from the Line1 field.

4.     Click Apply.

Figure 6 Configuring the WAN access scenario

 

Configuring WAN interface parameters

1.     Click the WAN Settings tab.

2.     Click the Edit icon in the Actions column for the WAN1 (GE1) interface.

3.     Select Fixed IP from the Connection mode field and configure the following parameters:

¡     Enter static IP address 10.1.1.1 in the IP address field.

¡     Enter a mask of 255.255.255.0 or a mask length of 24 in the Subnet mask field.

¡     Enter gateway address 10.1.1.254 in the Gateway field.

¡     Enter DNS server addresses 114.114.114.114 and 8.8.8.8 in the DNS1 and DNS2 fields, respectively.

¡     Enter the interface MAC address In the MAC field. You can use the default factory MAC address of the interface because the ISP does not require MAC address binding.

¡     Enable NAT address translation.

¡     Set the maximum size for a TCP segment and MTU permitted by the interface in the TCP MSS and MTU fields. In this example, the default settings are used.

4.     Retain the default settings in the other fields and then click Apply.

Figure 7 Changing WAN configuration

 

Configuring LAN interface parameters

# Configure the LAN interface on the router with the IP address 192.168.10.1. The configuration steps are as follows:

1.     From the left navigation pane, select Network > LAN Settings.

2.     Click the LAN Settings tab.

3.     Click Add.

4.     Select GE interface as the interface type and select GE2 as the interface for connecting to the internal network.

5.     Enter IP address 192.168.10.1 in the Interface IP address field.

6.     Enter a mask of 255.255.255.0 or a mask length of 24 as the subnet mask.

7.     Set the TCP MSS to 1280.

8.     Set the interface MTU to 1500.

9.     For the device to dynamically assign IP addresses to clients accessing the GE2 interface, click to enable the DHCP server, and then configure the following parameters:

¡     Specify start address 192.168.10.1 and end address 192.168.10.254 for the address pool.

¡     Specify excluded addresses as needed to prevent the device from assigning certain IP addresses within the address pool range (such as gateway addresses) to clients. In this example, exclude the gateway address 192.168.10.1 from client IP address allocation.

¡     Enter the client gateway address as 192.168.10.1.

¡     Enter DNS server addresses 114.114.114.114 and 8.8.8.8 in the DNS1 and DNS2 fields, respectively.

¡     Set the IP address lease in minutes. For example, to set the IP address lease to 5 days, enter 7200.

10.     Click Apply.

Figure 8 Adding a LAN configuration

 

Verifying the configuration

Verify that the PC can access the Internet.