P

ART

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Routing Protocol

Static Route (163)

DHCP Relay (165)

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C H A P T E R 23

Static Route

This chapter shows you how to configure static routes.

23.1 Configuring Static Route

Static routes tell the switch how to forward IP traffic when you configure the TCP/IP parameters manually.

Click Routing Protocol > Static Routing in the navigation panel to display the screen as shown.

Figure 70 Static Routing

The following table describes the related labels you use to create a static route.

Table 56 Static Routing

LABEL DESCRIPTION

Active

Name

Destination IP

Address

This field allows you to activate/deactivate this static route.

Enter a descriptive name for this route. This is for identification purpose only.

This parameter specifies the IP network address of the final destination. Routing is always based on network number. If you need to specify a route to a single host, use a subnet mask of 255.255.255.255 in the subnet mask field to force the network number to be identical to the host ID.

Enter the subnet mask for this destination.

IP Subnet

Mask

Gateway IP

Address

Enter the IP address of the gateway. The gateway is an immediate neighbor of your switch that will forward the packet to the destination. The gateway must be a router on the same segment as your switch.

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Table 56 Static Routing (continued)

LABEL DESCRIPTION

Metric

Add

Cancel

The metric represents the “cost” of transmission for routing purposes. IP routing uses hop count as the measurement of cost, with a minimum of 1 for directly connected networks. Enter a number that approximates the cost for this link. The number need not be precise, but it must be between 1 and 15. In practice, 2 or 3 is usually a good number.

Click Add to insert a new static route.

Click Cancel to reset the above fields to your previous configuration.

Index

Active

Name

Destination

Address

Subnet Mask

Gateway

Address

Metric

Delete

Cancel

This field displays the index number of the route. Click a number to edit the static route entry.

This field displays Yes when the static route is activated and NO when it is deactivated.

This field displays the descriptive name for this route. This is for identification purpose only.

This field displays the IP network address of the final destination.

This field displays the subnet mask for this destination.

This field displays the IP address of the gateway. The gateway is an immediate neighbor of your switch that will forward the packet to the destination.

This field displays the cost of transmission for routing purposes.

Click Delete to remove the selected entry from the summary table.

Click Cancel to clear the Delete check boxes.

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C H A P T E R 24

DHCP Relay

This chapter shows you how to configure the DHCP feature.

24.1 DHCP Overview

DHCP (Dynamic Host Configuration Protocol RFC 2131 and RFC 2132) allows individual computers to obtain TCP/IP configuration at start-up from a server. You can configure the switch to relay client DHCP requests to a DHCP server and the server’s responses back to the clients.

24.1.1 DHCP Relay Agent Information

The switch can add information to client DHCP requests that it relays to a DHCP server. This helps provide authentication about the source of the requests. You can also specify additional information for the switch to add to the client DHCP requests that it relays to the DHCP server. Please refer to RFC 3046 for more details.

The DHCP relay agent information feature adds an Agent Information field to the option 82 field of the DHCP headers of client DHCP request frames that the switch relays to a DHCP server. The following lists the DHCP relay agent option 82 information that the switch sends to the DHCP server:

• Slot ID (1 byte)

• Port ID (1 byte)

• VLAN ID (2 bytes)

• System name (up to 32 bytes, this is optional)

24.2 Configuring DHCP Relay

Click Routing Protocol > DHCP Relay in the navigation panel. Use this screen to enable

DHCP relay on the switch and specify the IP address(es) of the DHCP server(s).

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Chapter 24 DHCP Relay

Figure 71 DHCP Relay

The following table describes the labels in this screen.

Table 57 DHCP Relay

LABEL DESCRIPTION

Active

Remote DHCP

Server 1.. 3

Relay Agent

Information

Information

Apply

Cancel

Select this check box to enable DHCP relay settings.

Enter the IP address(es) of the DHCP server(s).

Select the Option 82 check box to have the switch add information (slot number, port number and VLAN ID) to client DHCP requests that it relays to a DHCP server.

This read-only field displays the system name you configure in the General Setup screen.

Select the check box for the switch to add the system name to client DHCP requests that it relays to a DHCP server.

Click Apply to save the changes.

Click Cancel to reset the fields to your previous configurations.

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