HP VCX Software Appendix B. Troubleshooting, Network troubleshooting, No traffic shown in the log

Appendix B. Troubleshooting

Troubleshooting the Telecommuting Module largely consists of checking the hardware (the Telecommuting Module, the network connectors, ...) and checking the Telecommuting Mod- ule log. The log is usually an excellent tool in finding out why the Telecommuting Module does not do what you wanted it to do.

Below is some general advice to help you troubleshoot, almost regardless of which problem you have.

•Check that the events you look for are really logged (on the Logging Configuration page).

•Check that the configuration has been applied properly, either by applying it (on the Save/Load Configuration page) or by checking the Permanent Configuration (on the Show Configuration page).

•Check that you display the log you want to look for. The correct date and time (or no date or time) should be filled in, the desired log entries should be checked on the righthand side of the page, and the three boxes concerning which IP packets to show should be filled in accordingly.

Network troubleshooting

No traffic shown in the log

•Check that the interface is turned on on the corresponding interface page.

•Check that the Telecommuting Module has a correct default gateway (on the Basic Con- figuration page).

•Check that the client computer has a correct default gateway.

Traffic discarded as spoofed

When traffic is blocked and the reason given is Spoofed, there is a mismatch between the network that the Telecommuting Module is configured for and the network that the client is configured for. The Telecommuting Module regards an IP address as spoofed if it detects traffic from that IP address on an interface where the IP address should not be.

An example of a situation where this occurs is when you move a computer from one Telecommuting Module interface to another without changing its IP address and netmask.

Another example is if the Telecommuting Module has been configured to use a network with a netmask of 255.255.255.128, but the network really is larger, like 255.255.254.0. The IP addresses outside the smaller IP interval will be regarded as spoofed by the Telecommuting Module.

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