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High Availability Configuration Guide TGW4/8 Gateway Series for Aeonix
104
Tadiran Telecom (TTL) L.P
5
Appendix: VLAN Configuration
Virtual Local Area Network (VLAN) virtually divides a physical LAN into multiple broadcast domains.
Only hosts in the same VLAN can directly communicate without a router, so broadcast packets are
restricted to the same VLAN, improving network security (e.g, a data-only VLAN or voice-only VLAN).
VLAN technology identifies the VLAN information of a data packet by adding the VLAN tag field in the
Ethernet frame header.
When a gateway accesses a VLAN, configurations such as VLAN tags and priorities are required for the
gateway.
The following methods are used for configuring VLANs:
Manual configuration: Via a web-based GUI.
Restart is required after the configuration.
Automatic configuration: With Link Layer Discovery Protocol (LLDP) enabled. During startup the
TGW automatically obtains VLAN configuration information via an LLDAP message, adds VLAN
tag in packets it sends, and obtains network information such as IP address using the DHCP mode by
default.
The gateways support two VLAN modes: single VLANs and multi-service VLANs (including voice and
management VLANs). Manual mode is used to configure single and multi-service VLANs. Automatic
mode can configure only single VLANs.
5.1 Manual Configuration
5.1.1 Single VLAN
All services of the TGW are on the same VLAN, and the TGW receives only data packets carrying the
VLAN and includes the VLAN tag in all sent data packets. In the single VLAN mode, all TGW services
belong to the same VLAN. The TGW receives only data packets that carry the VLAN tag and includes the
VLAN tag in all sent data packets. In this mode, the physical network port of the TGW has no separate
address and shares the IP address of the VLAN interface.
Configuration
On the web interface, click
Network
, set the VLAN function to
On
, set
Mode
to
Single VLAN
, enter the
VLAN tag, and specify network information such as IP address or select
DHCP,
as shown in
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