AudioCodes Mediant 3000, User Manual

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Version 6.6 123 Mediant 3000
User's Manual 11. Network
(numeric value 4) or IPv6 Manual Prefix (numeric value 3).

The same VLAN ID may be shared between two interfaces where one has an IPv6
address and the other an IPv4 address. But the same VLAN ID cannot be shared
between two interfaces having IPv4 addresses, or two interfaces having IPv6
addresses.

When configuring more than one IP interface of the same address family, VLANs must
be enabled.

For network configuration to take effect, you must save the configuration to the
device's flash memory (burn) with a device reset.
Notes:
•
When configuring the network interfaces and VLANs in the Multiple
Interface table using the Web interface, it is recommended to check that
your configuration is valid, by clicking the Done button in the Multiple
Interface Table page.
•
Upon device start up, the Multiple Interface table is parsed and passes
comprehensive validation tests. If any errors occur during this validation
phase, the device sends an error message to the Syslog server and falls
back to a "safe mode", using a single interface and no VLANs. Ensure
that you view the Syslog messages that the device sends in system
startup to see if any errors occurred.
11.3.3 Troubleshooting the Multiple Interface Table
If any of the Multiple Interface table guidelines are violated, the device falls back to a "safe
mode" configuration, consisting of a single IPv4 interface without VLANs. For more
information on validation failures, consult the Syslog messages.
Validation failures may be caused by one of the following:

One of the Application Types (OAMP, Control, or Media) are missing in the IPv4
interfaces.

An IPv6 interface was defined with a prefix length other than 64.

There are too many interfaces for Application Type, OAMP. There is only one
interface defined, but the 'Application Types' column is not set to
OAMP + Media +
Control (numeric value 6).

An IPv4 interface was defined with 'Interface Type' other than IPv4 Manual (10).

An IPv6 interface was defined with 'Interface Type' other than IPv6 Manual (4) or IPv6
Manual Prefix (3).

An IPv6 interface was defined with an IPv4 address in the 'Gateway' column (including
"0.0.0.0").

Two interfaces of the same address family have the same VLAN ID value while
VLANs are enabled.

Two interfaces have the same name.

At least two interfaces share the same address space or subnet.
Apart from these validation errors, connectivity problems may be caused by one of the
following:

Trying to access the device with VLAN tags while booting from BootP/DHCP.

Trying to access the device with untagged traffic when VLANs are on and Native
VLAN is not configured properly.

The IP Routing table is not configured properly.