System Requirements

Windows

• Computer with a Pentium®-class processor or greater.

We recommend you use one of the following operating systems

• Windows 2000
• Windows XP

Other operating systems are NOT RECOMMENDED

• Microsoft TCP/IP installed. (Confirm via Start > Settings > Control Panel > Network > Protocols or Configuration.)
• 10 MB free hard disk space.

RAM:

• 64 MB for Windows 2000.
• 128 MB for Windows XP

To install the VPN Client you need:

• Network connection.
• Administrator privileges when installing

To use the VPN Client:

• Direct network connection (cable or DSL modem and network adapter/interface card), or
• Internal or external modem.

Macintosh

Mac OS X System Requirements

The VPN client for Mac OS X runs on any Macintosh computer running OS X version 10.1.0 or later.

Note: Classic Mac applications do not make use of the VPN tunnel.

Linux

The VPN client for Linux supports Red Hat version 6.2 Linux (Intel), or compatible libraries with glibc version 2.1.1-6 or later, using kernel versions 2.2.12 or later.

Linux Firewall Issues

If you are running a Linux firewall (for example, ipchains or iptables), be sure that the following types of traffic are allowed to pass through:

UDP port 500

UDP port 10000 (or any other port number being used for IPSec/UDP)

IP protocol 50 (ESP)

TCP port configured for IPSec/TCP

Linux troubleshooting tip

The following two lines might be added by default with your Linux installation in the /etc/sysconfig/ipchains directory. For Redhat, this might be written to the /etc/sysconfig/ipchains directory. These two commands might prevent UDP traffic from passing through.

-A input -p udp -s 0/0 -d 0/0 0:1023 -j REJECT
-A input -p udp -s 0/0 -d 0/0 2049 -j REJECT

If you have problems with UDP traffic, first delete the above two lines, then enter the following two commands:

/etc/init.d/ipchains stop
/etc/init.d/ipchains start

Note: Ipchains might be replaced by iptables or it might be located in a different directory on your Linux distribution.

Unix

Solaris System Requirements

• The VPN client for Solaris runs on any ultraSPARC computer running a 32-bit Solaris kernel OS version 2.6 or later.

Using the 32-Bit Kernel
Some Solaris machines run a 64-bit kernel by default. To use the VPN client, run the 32-bit version of the kernel.

There are several ways to run in 32-bit mode.

Specify the kernel/unix as the boot file. Enter the following command:

ok boot kernel/UNIX

This command immediately reboots the system in 32-bit mode. 32-bit mode is only valid for this boot. When you reboot again, the system switches back to its default mode.

Switch to 32-bit mode permanently. Enter the following command:

eeprom boot-file=/platform/sun4u/kernel/UNIX

You must reboot after you issue this command.

Switch back to 64-bit mode permanently. Enter the following command:

eeprom boot-file=/platform/sun4u/kernel/sparcv9/UNIX

You must reboot after you issue this command.

To confirm that your system is running in 32-bit mode:

a. Issue the following command:

isainfo -kv

b. When the Solaris system boots up, a message in the dmesg event log similar to the following appears:

Oct 29 11:09:54 sol-2062 cipsec: [ID 952494 kern.notice] Cisco
Unity IPSec Module Load OK

If you do not receive this message, the IPSec module did not load properly and you need to switch to the 32-bit kernel.