Setting The Dscp Value For Outgoing Dns Packets; Displaying And Maintaining Dns; Ipv4 Dns Configuration Examples; Static Domain Name Resolution Configuration Example - HPE FlexNetwork HSR6800 Configuration Manual

Step
2. Specify the DNS trusted
interface.

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
1. Enter system view.
2. Set the DSCP value for
outgoing DNS packets.

Displaying and maintaining DNS

Execute display commands in any view and reset commands in user view.
Task
Display the domain name resolution
table.
Display IPv4 DNS server
information.
Display IPv6 DNS server
information.
Display DNS suffixes.
Clear dynamic DNS entries.

IPv4 DNS configuration examples

Static domain name resolution configuration example

Network requirements
As shown in
device so that the device can use the easy-to-remember domain name rather than the IP address to
access the host.
Command
dns trust-interface interface-type
interface-number
Command
system-view
•
•
Figure 35, the host at 10.1.1.2 is named host.com. Configure static IPv4 DNS on the
DSCP value for IPv4 DNS
packets:
dns dscp dscp-value
DSCP value for IPv6 DNS
packets:
ipv6 dns dscp dscp-value
Command
display dns host [ ip | ipv6 ] [ vpn-instance vpn-instance-name ]
display dns server [ dynamic ] [ vpn-instance vpn-instance-name ]
display ipv6 dns server [ dynamic ] [ vpn-instance
vpn-instance-name ]
display dns domain [ dynamic ] [ vpn-instance
vpn-instance-name ]
reset dns host [ ip | ipv6 ] [ vpn-instance vpn-instance-name ]
94
Remarks
By default, no DNS trusted
interface is specified.
You can configure up to 128 DNS
trusted interfaces.
Remarks
N/A
By default, the DSCP value for
outgoing DNS packets is 0.
The configuration is available on
DNS clients and DNS proxy
devices.