Cisco Systems XO Frequently Asked Questions

Frequently Asked Questions

1. Does this client work with PPPoE?

Yes. However, you cannot install the client when the PPPoE session is live. Disconnect DSL/PPPoE session,

install the client, reboot your machine, reconnect the DSL session, and then run the client.

2. Will this client work behind a NAT’d connection?

Certain routers will support NAT Transparency. Speak to your security engineer to discuss your options. If you

have a compatible router, the setting for NAT Transparency is located on the Properties tab.

3. Where can I find Dial-Up Networking v. 1.3 for Windows 95 and Windows 98?

Windows 95:

http://www.microsoft.com/windows95/downloads/contents/WURecommended/S_WUNetworking/dunwinsky2k/Def

ault.asp

Windows 98 is provided with DUN 1.3. However, v. 1.4 is available if you are experiencing problems

http://www.microsoft.com/windows98/downloads/contents/wurecommended/s_wunetworking/dun14/default.asp

4. Is there a Cisco client compatible with non-Windows based systems?

Yes, however, XO is not responsible for the installation, configuration, management, or maintenance of a non-

Windows client. The client can be obtained from www.cisco.com or by emailing your security engineer.

5. What ports do I need to open on my firewall to allow the client to connect from my internal network?

This is an IPSec client, and therefore requires the following ports to be opened:

Encapsulation Security Payload (ESP) – IP 50

Authentication Header (AH) – IP 51

Internet Security Association and Key Management Protocol (ISAKMP) – UDP 500