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This document describes how to install the Virtual Private Network (VPN) module in your Cisco 1720 or Cisco 1750 router. Table 1 describes the Cisco parts to which this document applies.
| Cisco Part Number | Description |
|---|---|
MOD1700-VPN= | VPN module for Cisco 1700 series routers |
This document contains the following sections:
This section describes important safety information and the tools required to install the VPN module. Read this section before installing the VPN module in a Cisco 1720 or 1750 router.
The following items are required to install the VPN module:
Included with the VPN module are the following parts required for installation:
 | Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord. |
| Warning Before opening the chassis, disconnect the telephone-network cables to avoid contact with telephone-network voltages. |
| Warning Do not work on the system or connect or disconnect cables during periods of lightning activity. |
| Warning Do not touch the power supply when the power cord is connected. For systems with a power switch, line voltages are present within the power supply even when the power switch is off and the power cord is connected. For systems without a power switch, line voltages are present within the power supply when the power cord is connected. |
| Warning
Read the installation instructions before you connect the system to its power source. |
| Warning Ultimate disposal of this product should be handled according to all national laws and regulations. |
| Warning Before working on equipment that is connected to power lines, remove jewelry (including rings, necklaces, and watches). Metal objects will heat up when connected to power and ground and can cause serious burns or weld the metal object to the terminals. |
| Warning Only trained and qualified personnel should be allowed to install or replace this equipment. |
| Warning Hazardous network voltages are present in WAN ports regardless of whether power to the router is OFF or ON. To avoid electric shock, use caution when working near WAN ports. When detaching cables, detach the end away from the router first. |
Before installing an VPN module, read the electrostatic discharge (ESD) instructions in this section. ESD is a discharge of stored static electricity that can damage equipment and impair electrical circuitry. It occurs when electronic components are improperly handled and can result in complete or intermittent failures.
Following are guidelines for preventing ESD damage:
 | Caution To avoid damaging the equipment, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 megohms (Mohms). |
| Warning During this procedure, wear grounding wrist straps to avoid ESD damage to the router. Do not directly touch the backplane with your hand or any metal tool, or you could shock yourself. |
This section describes how to install the VPN module in a Cisco 1720 router. It contains the following sections:
In order to install the VPN module in a Cisco 1720 router, you must open the router chassis. Opening the chassis requires a number one Phillips screwdriver.
Follow these steps to open the chassis:
Step 1 Make sure the router is turned off and is disconnected from the power supply.
Step 2 Turn the router upside down, and rest the top of the router on a flat surface.
Step 3 Use the Phillips screwdriver to remove the four screws that hold the top and bottom of the chassis together, as shown in Figure 2.
Step 4 Turn the router back to its original position (top up).
Step 5 Gently pull the top of the router (which is facing up toward you) up and away from the bottom of the router.
At this point, you might have to disconnect the fan inside the top of the router chassis from the motherboard. Do this by disconnecting the fan cable from the connector (labeled FAN) on the motherboard.
Step 6 Place the router bottom on an antistatic mat, and begin installing the VPN module.
Follow the steps in this section to install the VPN module.
Step 1 Using one of the screws provided, attach the standoff to the top side of the 1720 router motherboard.
(a) Locate the small hole in the motherboard just to the right of the Flash memory at the right-front corner of the motherboard (when facing the front of the router). Figure 3 shows the location of the standoff at the bottom of the dotted line.
(b) Turn the motherboard over and attach the standoff to it using one of the screws provided as shown in Figure 4.
Step 2 The VPN module plugs into a socket just to the left of the Flash memory at the right-front corner of the motherboard (when facing the front of the router). Figure 3 shows the location of the VPN module socket.
Step 3 Pushing down with both thumbs as shown in Figure 5, plug the VPN module into the socket.
Step 4 Using a remaining screw, secure the standoff to the VPN module.
Step 5 To secure the VPN board connection in the socket, you must attach a retention clip.
(a) The retention clip for the 1720 router slides over the VPN module where it connects to the socket and clips to the side of the router motherboard. The horizontal tab slides underneath the WIC 0 socket as shown in Figure 6.
(b) Align the post in the middle of the clip with the hole in the center of the socket-side of the VPN card as shown in Figure 7.
(c) Attach the retention clip to the motherboard as shown in Figure 8.
After installing the VPN module on the motherboard, follow these steps to close the chassis:
Step 1 If you disconnected the fan from the motherboard as described in the "Opening the Cisco 1720 Chassis" section, reconnect the fan cable to the connector labeled FAN on the motherboard.
Step 2 Locate the posts that protrude from the inside of the chassis cover and the corresponding openings on the chassis bottom.
Step 3 Line up the posts with the corresponding openings, as shown in Figure 9, and carefully slide the posts into the openings, using caution not to damage the router motherboard with the posts.
Step 4 Replace the screws that you removed when opening the chassis. (See Figure 2.)
This section describes how to install the VPN module in a Cisco 1750 router. It contains the following sections:
To install the VPN module, you must open the chassis. Opening the chassis requires a number one Phillips screwdriver.
Follow these steps to open the chassis:
Step 1 Make sure the router is turned off and is disconnected from the power supply.
Step 2 Turn the router upside down, and rest the top of the router on a flat surface.
Step 3 Use the Phillips screwdriver to remove the four screws that hold the top and bottom of the chassis together, as shown in Figure 10.
Step 4 Turn the router back to its original position (top up).
Step 5 Gently pull the top of the router (facing toward you) up and away from the bottom of the router.
At this point, disconnect the fan, which is inside the top of the router chassis, from the motherboard. Do this by disconnecting the fan cable from the connector (labeled FAN) on the motherboard.
Step 6 Place the router bottom on an antistatic mat and begin installing the VPN module.
Follow the steps in this section to install the VPN module.
Step 1 The VPN module plugs into a socket under slot 2. If there is a VIC in slot 2, you must remove it.
(a) Loosen the screws that secure the VIC to the backplane of the router.
(b) Carefully slide the VIC out of the back of the router.
Step 2 Using one of the screws provided, attach the standoff to the 1720 motherboard.
(a) First, locate the hole in the motherboard under slot 2, toward the rear of the router; as shown in Figure 11.
(b) Turn the motherboard over and attach the standoff to it using one of the screws provided as shown in Figure 12.
Step 3 Install the 1750 VPN module retention clip.
(a) The 1750 retention clip slides into the empty slot in the plastic bracket that holds the VIC slot 2 socket as shown in Figure 13.
(b) Slide the clip into the empty slot with the tabs facing forward as shown in Figure 14. Place your thumbs on the horizontal tabs and push the clip into the slot until it is fully seated.
Step 4 Locate the VPN module socket and slide the VPN module underneath the VIC card guide as shown in Figure 15.
Step 5 Pushing down with both thumbs as shown in Figure 16, plug the VPN module into the socket. The vertical tabs on the retention clip should snap over the top of the VPN module securing it into the socket as shown in Figure 17.
Step 6 Using a remaining screw, secure the standoff to the VPN module.
Step 7 If you removed a VIC from slot 2 in Step 2, reinsert it into slot 2.
(a) Hold the card by the edges on either side of the card front panel, and line up the card edges with the guides inside the card slot.
(b) Insert the card into the slot and gently push it into the router until the front panel of the card is flush with the rear panel of the router.
(c) Tighten the screws.
Step 8 Using the remaining screw, secure the standoff to the VPN module.
After installing the VPN module on the motherboard, close the chassis by following these steps:
Step 1 If you disconnected the fan from the motherboard as described in the "Opening the Cisco 1750 Chassis" section, reconnect the fan cable to the connector labeled FAN on the motherboard.
Step 2 Locate the posts that protrude from the inside of the chassis cover and the corresponding openings on the chassis bottom.
Step 3 Line up the posts with the corresponding openings, as shown in Figure 18, and carefully slide the posts into the openings. Be careful not to damage the router motherboard with the posts.
Step 4 Replace the screws that you removed when opening the chassis. (See Figure 10.)
This section describes additional documentation related to the VPN module or to your Cisco 1720 or 1750 router.
For information about new Cisco IOS commands related to the VPN module, refer to the Cisco IOS Release 12.1(1)XC feature modules listed in the section below titled "Feature Modules."
For information about your Cisco 1720 or Cisco 1750 routers, refer to the section below titled "Platform-Specific Documents."
For information about Cisco IOS Release 12.1, refer to the section below titled "Release-Specific Documents."
Printed manuals and electronic documents are available, except for feature modules, which are available online on CCO and the Documentation CD-ROM.
Feature modules describe new features supported by Release 12.1(1)XC and are updates to the Cisco IOS documentation set. A feature module consists of a brief overview of the feature, benefits, configuration tasks, and a command reference. As updates, the feature modules are available online only. Feature module information is incorporated in the next printing of the Cisco IOS documentation set.
To reach the Release 12.1(1)XC feature modules:
These documents are available for the Cisco 1720 router on CCO and the Documentation CD-ROM:
On CCO at:
Technical Documents: Documentation Home Page: Access Servers and Access Routers: Modular Access Routers: Cisco 1720 Router
On the Documentation CD-ROM at:
Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 1720 Router
These documents are available for the Cisco 1750 router on CCO and the Documentation CD-ROM:
On CCO at:
Technical Documents: Documentation Home Page: Access Servers and Access Routers: Modular Access Routers: Cisco 1750 Router
On the Documentation CD-ROM at:
Cisco Product Documentation: Access Servers and Access Routers: Modular Access Routers: Cisco 1750 Router
The following documents are specific to Release 12.1. They are located on CCO and the Documentation CD-ROM:
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Posted: Sat Mar 25 18:20:40 PST 2000
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