Cisco Cisco TelePresence MCU 4510 Maintenance Manual
DNS settings
Cisco TelePresence MCU Version 4.2 Printable online help
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DNS settings
This page describes how to configure and view DNS settings for the MCU.
Configuring DNS settings
To configure DNS settings on the MCU, go to Network > DNS. These settings determine the DNS
configuration for the MCU.
configuration for the MCU.
Click Update DNS configuration after making any changes.
Field
Field description
Usage tips
DNS configuration
DNS
configuration
configuration
Select a DNS server preference from the
list or select Manual to specify DNS
settings manually.
list or select Manual to specify DNS
settings manually.
If Manual is selected, all DNS settings are
as configured on this page.
as configured on this page.
If Automatic via DHCP/Automatic via
SLAAC/DHCPv6 is selected, there will be
no DNS nameserver used until the value to
use is received via DHCP on that interface.
So, for example, if you select Port A IPv6
as the DNS setting, ensure that Port A is
set to use DHCP by setting the IP
configuration field for Port A in the IPv6
section of the Port A IP configuration page
(Network > Port A) to Automatic via
SLAAC/DHCPv6.
SLAAC/DHCPv6 is selected, there will be
no DNS nameserver used until the value to
use is received via DHCP on that interface.
So, for example, if you select Port A IPv6
as the DNS setting, ensure that Port A is
set to use DHCP by setting the IP
configuration field for Port A in the IPv6
section of the Port A IP configuration page
(Network > Port A) to Automatic via
SLAAC/DHCPv6.
Note that if the DHCP server on your
network does not supply DNS
configuration information, then the MCU
will have no ability to look up names.
Additionally, for IPv6 the Router
Advertisment packets determine whether
or not DHCPv6 is used.
network does not supply DNS
configuration information, then the MCU
will have no ability to look up names.
Additionally, for IPv6 the Router
Advertisment packets determine whether
or not DHCPv6 is used.
Host name
Specifies a name for the MCU.
Depending on your network configuration,
you may be able to use this host name to
communicate with the MCU, without
needing to know its IP address.
you may be able to use this host name to
communicate with the MCU, without
needing to know its IP address.
Name server
The IP address of the name server.
Secondary
name server
name server
Identifies an optional second name server. The secondary DNS server is only used if
the first is unavailable. If the first server
returns that it does not know an address,
the secondary DNS server will not be
queried.
returns that it does not know an address,
the secondary DNS server will not be
queried.