ZyXEL Communications ISG50-ISDN User Manual page 767

• 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.
• The names of virtual interfaces are derived from the interfaces on which they are created. For
example, virtual interfaces created on Ethernet interface wan1 are called wan1:1, wan1:2, and
so on. Virtual interfaces created on VLAN interface vlan2 are called vlan2:1, vlan2:2, and so on.
You cannot specify the number after the colon(:) in the Web Configurator; it is a sequential
number. You can specify the number after the colon if you use the CLI to set up a virtual
interface.
I cannot set up a PPP interface, virtual Ethernet interface or virtual VLAN interface on an
Ethernet interface.
You cannot set up a PPP interface, virtual Ethernet interface or virtual VLAN interface if the
underlying interface is a member of a bridge. You also cannot add an Ethernet interface or VLAN
interface to a bridge if the member interface has a virtual interface or PPP interface on top of it.
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 ISG50 automatically updates every rule or setting that uses the object
whenever the interface's IP address settings change. For example, if you change LAN1's IP address,
the ISG50 automatically updates the corresponding interface-based, LAN1 subnet address object.
I cannot set up a PPP interface.
You have to set up an ISP account before you create a PPPoE or PPTP interface.
The data rates through my cellular connection are no-where near the rates I expected.
The actual cellular data rate you obtain varies depending on the cellular device you use, the signal
strength to the service provider's base station, and so on.
I created a cellular interface but cannot connect through it.
• Make sure you have a compatible 3G device installed or connected. See www.zyxel.com for
details.
• Make sure you have the cellular interface enabled.
ISG50 User's Guide
Chapter 61 Troubleshooting
767