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# Configuring IP Forwarding for CTP Bundles (CTPView)

There are two ways to set up CTP bundles for IP forwarding:

- Direct drive—Packets are forwarded directly between drivers on the local and remote CTP device. Use this method for simple port-to-port configurations. We recommend that you use this method with supervision from JTAC.
- Direct drive disabled—Packets are forwarded based on information in the kernel’s IP stack.

Before you begin:

- Log in to the CTPView software at least at the Net_Admin level.
- Connect the CTPView server to the CTP device for which you want to configure bundles.
- Disable the bundle before you modify the bundle options.

To configure IP forwarding for CTP bundles using CTPView:

1. In the side pane, select Bundle > Configuration.
2. Run your mouse over the Display and Select an Existing Bundle bar.
3. In the table of bundles, select the bundle that you want to modify.
4. Under Bundle Options, place a check mark in the Advanced Options show check box to display advanced parameters, and configure the parameters described in Table 1.

5. Click Click to Submit Bundle AND Port Changes.

Table 1: CTP Bundle IP Forwarding Parameter Settings in CTPView

Field | Function | Your Action
--- | --- | ---
Direct Drive | Specifies whether the CTP bundle uses direct drive or IP tables to forward packets. If you are using route redundancy, port mirroring, or VLANs, you must disable direct drive and use IP tables. | Select one: DISABLED—CTP uses the kernel’s IP stack to forward packets. ENABLED—CTP uses direct drive to forward packets.

#### Published: 2011-01-09

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