ZyXEL Communications NXC Series - Page 428

Chapter 36 Troubleshooting
NXC Series User’s Guide
428
I cannot access the Internet.
• Check the NXC’s connection to the Ethernet jack with Internet access. Make sure the Internet
gateway device (such as a DSL modem) is working properly.
• If the NXC is operating in its default bridge mode, ensure that the DHCP server to which the NXC is
connected is properly configured to assign IP addresses.
• Check the NXC’s security settings and/or interface and VLAN settings to ensure you have not
inadvertently excluded your client device from accessing the network or the Internet.
The NXC is not applying the custom policy route I configured.
The NXC checks the policy routes in the order that they are listed. So make sure that your custom policy
route comes before any other routes that the traffic would also match.
I can’t enter the interface name I want.
The format of interface names other than the Ethernet interface names is very strict. Each name consists
of 2-4 letters (interface type), followed by a number (x, limited by the maximum number of each type of
interface). For example, VLAN interfaces are vlan0, vlan1, vlan2, ...; and so on.
My rules and settings that apply to a particular interface no longer work.
The interface’s IP address may have changed. To avoid this create an IP address object based on the
interface. This way the NXC automatically updates every rule or setting that uses the object whenever
the interface’s IP address settings change. For example, if you change ge1’s IP address, the NXC
automatically updates the corresponding interface-based, ge1 subnet address object.
Hackers have accessed my WEP-encrypted wireless LAN.
WEP is extremely insecure. Its encryption can be broken by an attacker, using widely-available software.
It is strongly recommended that you use a more effective security mechanism. Use the strongest security
mechanism that all the wireless devices in your network support. WPA2 or WPA2-PSK is recommended.
The wireless security is not following the re-authentication timer setting I specified.