HPE FlexNetwork MSR Series Comware 7 Layer 3 - Ip Services Configuration Guides

115
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Specify the DNS trusted
interface.
dns trust
-
interface
interface-type
interface-number
By default, no DNS trusted
interface is specified.
You can configure up to 128 DNS
trusted interfaces.
Setting the DSCP value for outgoing DNS packets
The DSCP value of a packet specifies the priority level of the packet and affects the transmission
priority of the packet. A bigger DSCP value represents a higher priority.
To set the DSCP value for outgoing DNS packets:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Set the DSCP value for
outgoing DNS packets.
• DSCP value for IPv4 DNS
packets:
dns dscp dscp-value
• DSCP value for IPv6 DNS
packets:
ipv6 dns dscp dscp-value
By default, the DSCP value for
outgoing DNS packets is 0.
The configuration is available on
DNS clients and DNS proxy
devices.
Displaying and maintaining DNS
Execute display commands in any view and reset commands in user view.
Task Command
Display the domain name resolution
table.
display dns host
[
ip
|
ipv6
] [
vpn-instance
vpn-instance-name ]
Display IPv4 DNS server
information.
display dns server
[
dynamic
] [
vpn-instance
vpn-instance-name ]
Display IPv6 DNS server
information.
display ipv6 dns server
[
dynamic
] [
vpn-instance
vpn-instance-name ]
Display DNS suffixes.
display dns domain
[
dynamic
] [
vpn-instance
vpn-instance-name ]
Clear dynamic DNS entries.
reset dns host
[
ip
|
ipv6
] [
vpn-instance
vpn-instance-name ]
IPv4 DNS configuration examples
Static domain name resolution configuration example
Network requirements
As shown in Figure 42, the host at 10.1.1.2 is named host.com. Configure static IPv4 DNS on the
device so that the device can use the easy-to-remember domain name rather than the IP address to
access the host.

HPE FlexNetwork MSR Series Specifications

General

Brand	HPE
Model	FlexNetwork MSR Series
Category	Network Router
Language	English