Avaya 1600 Series - Manual (Page 76)

Administering Telephone Options
76 Avaya 1600 Series IP Deskphones Administrator Guide
DNS Addressing
The 1600 IP Telephones support DNS addresses and dotted decimal addresses. The telephone
attempts to resolve a non-ASCII-encoded dotted decimal IP address by checking the contents
of DHCP Option 6. See
DHCP Generic Setup on page 44 for information. At least one address
in Option 6 must be a valid, non-zero, dotted decimal address, otherwise, DNS fails. The text
string for the DOMAIN system parameter (Option 15,
Table 8 ) is appended to the address(es) in
Option 6 before the telephone attempts DNS address resolution. If Option 6 contains a list of
DNS addresses, those addresses are queried in the order given if no response is received from
previous addresses on the list. As an alternative to administering DNS by DHCP, you can
specify the DNS server and/or Domain name in the HTTP script file. But first SET the
DNSSRVR and DOMAIN values so you can use those names later in the script.
Note:
Note:
Administer Options 6 and 15 appropriately with DNS servers and Domain names
respectively.
VLANSEP is “1”
(On/Enabled)
AND the telephone is
not tagging frames,
OR if the telephone is
tagging frames with a
VLAN ID equal to
PHY2VLAN,
OR if the PHY2VLAN
value is zero.
The Ethernet switch forwarding logic
determines that frames received on the
Ethernet line interface are forwarded to the
secondary Ethernet interface or to the
telephone without regard to specific VLAN IDs
or the existence of tags.
VLANSEP is “1”
(On/Enabled)
AND the telephone is
tagging frames with a
VLAN ID not equal to
PHY2VLAN,
AND the PHY2VLAN
value is not zero.
Tagged frames received on the Ethernet line
interface will only be forwarded to the
secondary Ethernet interface if the VLAN ID
equals PHY2VLAN.
Tagged frames received on the Ethernet line
interface will only be forwarded to the
telephone if the VLAN ID equals the VLAN ID
used by the telephone.
Untagged frames will continue to be forwarded
or not forwarded as determined by the
Ethernet switch forwarding logic.
Table 9: VLAN Separation Rules (continued)
If Then
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