![background image](http://html.mh-extra.com/html/eltex/tau-4m-ip/tau-4m-ip_operation-manual_2397303046.webp)
____________________________________________________________________________________
____________________________________________________________________________________
46
TAU-4M.IP Subscriber gateway
Use Internet settings
– when selected, use network settings specified in the
'Network -> Internet'
menu, otherwise use settings specified in this menu;
Use VLAN
3
– when selected, VoIP service will use a dedicated interface in a separate VLAN for its
operation, with VLAN number specified in the
'VLAN ID'
field.
802.1P
– 802.1P marker (another name is
CoS (Class of Service)
), assigned to the outgoing IP
packets from this interface. It may take values from 0 (the lowest priority) to 7 (the highest
priority).
Protocol
– select address assigning protocol for the VoIP service interface:
–
Static
– operation mode where IP address and all the necessary parameters for WAN
interface are assigned manually. When 'Static' type is selected, the following parameters
will be available for editing:
IP address
– specify the IP address for VoIP service interface;
Subnet mask
– subnet mask for VoIP service interface;
Default gateway
– IP address for VoIP service interface default gateway;
1st DNS
,
2nd DNS
—DNS server IP addresses required for VoIP service operations.
–
DHCP
– operation mode where IP address, subnet mask, DNS address and other necessary
settings for service operation (e.g. SIP and registration server static routes) are
automatically obtained from DHCP server. If you are unable to obtain DNS server
addresses from the provider, you may specify them manually using
'Primary DNS'
and
'Secondary DNS'
fields. Manually defined addresses will have a priority over DNS
addresses obtained via DHCP.
For DHCP, you may specify the required value for Options 60 and 82.
Alternative Vendor ID (Option 60)
– when selected, the device transmits
Vendor ID
(Option 60) in Option 60 DHCP messages (Vendor class ID).
If the field is empty, Option
60 will not be transmitted in DHCP messages.
If the
Alternative Vendor ID (Option 60)
checkbox is not selected, the default value will be
transmitted in Option 60 in the following format:
[VENDOR:
vendor
][DEVICE:
device
type
][HW:
hardware
version
]
[SN:
serial
number
][WAN:
WAN
interface
МАС
address
][LAN:
LAN
interface
MAC
address
][VERSION:
firmware version
]
Example:
[VENDOR:Eltex][DEVICE:TAU-4M.IP][HW:1.0][SN:VI23000118]
[WAN:A8:F9:4B:03:2A:D0][LAN:02:20:80:a8:f9:4b][VERSION:#2.3.0]
DHCP Relay Agent information (Option 82) – when selected, you can add to DHCP
request the following data:
Agent circuit ID (Option 82)
– allows you to add suboption 1 - Agent Circuit ID into DHCP query;
Agent remote ID (Option 82)
– allows you to add suboption 2 - Agent Remote ID into DHCP query.
The list of DHCP options used on each network interface (Internet, VoIP, Management) can
be set manually. You will find the setup information in the Appendix B.
3
In the firmware version 1.9.1, you may specify custom settings for VoIP service only in the dedicated VLAN.