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Network Testing and Emulation Solutions

6. Virtual Router with DHCP Service

Goal: Setup a Virtual Router with one interface serving DHCP. Return to LANforge-ICE Cookbook

In this test scenario, a LANforge Virtual Router is created with one interface setup to serve DHCP to two remote redirect interfaces that are setup to be DHCP clients.

  1. Setup a Virtual Router and two Netsmith Connections.

    A: Go to the Status tab and click the Netsmith button
    B: Right-click in the Netsmith window and select New Router

    • Follow steps discussed above for configuring the router

    C: Right-click in the Netsmith window and select New Connection
    D: Accept defaults, Auto Create everything and click OK
    E: Repeat and create a second connection.
    F: Click the Apply button to commit the changes in Netsmith to the LANforge Server.

    • NOTE:   Modifications in Netsmith are only sent to the LANforge-Server after Applying them

  2. Setup the WanLinks.

    A: Right-click the first WanLink and select Modify WanLink
    B: Enter values specific to your test and click OK

    • NOTE:   Kernel-Mode allows for much higher emulation speeds and supports all features of the normal WAN emulation mode

    • Kernel-Mode is available for the WAN emulation if you are using a pre-compiled Linux kernel from the Candela downloads page
    C: Right-click to toggle the WanLink status to Running (green).
    D: Repeat for the second WanLink and set it to Running (green).

  3. Setup the ports.

    A: Right-click port rddVR0 and select Create Ports
    B: Select the Bridge button from the available connection types, name it, and click OK
    C: Right-click the bridge port and select Modify Port

    • NOTE:   You will have to click the Sync button for your newly created bridge port to appear in the Netsmith window.
    D: Assign an IP address and IP mask, then click Apply
    E: Enter interface names rddVR0 and rddVR2 in the whitespace located below the Add Ports button so that you can add them as bridge members
    F: Click Add Ports to add the interfaces as bridge members, then click OK
    G: The Netsmith window now shows a bridge port with two bridge members

  4. Setup DHCP Server and Clients.

    A: Drag the bridge port into the virtual router.
    B: Right-click the bridge port and select Modify
    C: Select the 'DHCP' checkbox at the bottom of the window and
    enter in your desired DHCP Server configuration, then click OK
    D: Right-click interface rddVR1 and select Modify Port
    E: Select the 'DHCP' checkbox to make this interface a DHCP client, then click OK
    F: Repeat for interface rddVR3, then click Netsmith Apply
    G: After the Netsmith apply, DHCP clients will acquire IP addresses from the DHCP server

    • Select the 'IPv4s' checkbox at the bottom of the Netsmith window to see the IP addresses of the DHCP clients

  5. Create a Layer-3 Connection.

    A: Go to the Layer-3 tab and click Create
    B: The RDD-FIRE connection for this example will use interfaces rddVR1 and rddVR3.
    C: Verify the Layer-3 connection was created

  6. Run LANforge-FIRE to yourself through LANforge-ICE!

    A: Select the Layer-3 Cross Connect and click Start
    B: Go to the Status tab and click Netsmith to view the graphical representation of the setup

  Email Candela Technologies at: support@candelatech.com if you have any questions or suggestions.

 

Candela Technologies, Inc., 2026 Main Street, Suite A, P.O. Box 3285, Ferndale, WA 98248, USA
www.candelatech.com | sales@candelatech.com | +1 360 380 1618
Candela Technologies, 2026 Main Street, Suite A, P.O. Box 3285, Ferndale, WA 98248, USA
www.candelatech.com | sales@candelatech.com | +1 360 380 1618
Last modified: Fri Mar 11 09:51:07 PST 2011