HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Services Configuration G - Page 94

IPv4 DNS configuration examples, Static domain name resolution configuration example

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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 information about the dynamic domain name cache. 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 33, the device wants to access the host by using an easy-to-remember domain name rather than an IP address. Configure static domain name resolution on the device so that the device can use the domain name host.com to access the host whose IP address is 10.1.1.2. Figure 33 Network diagram Configuration procedure # Configure a mapping between host name host.com and IP address 10.1.1.2. system-view [Sysname] ip host host.com 10.1.1.2 # Use the ping host.com command to verify that the device can use static domain name resolution to resolve domain name host.com into IP address 10.1.1.2. [Sysname] ping host.com Ping host.com (10.1.1.2): 56 data bytes, press CTRL_C to break 56 bytes from 10.1.1.2: icmp_seq=0 ttl=255 time=1.000 ms 56 bytes from 10.1.1.2: icmp_seq=1 ttl=255 time=1.000 ms 56 bytes from 10.1.1.2: icmp_seq=2 ttl=255 time=1.000 ms 56 bytes from 10.1.1.2: icmp_seq=3 ttl=255 time=1.000 ms 56 bytes from 10.1.1.2: icmp_seq=4 ttl=255 time=2.000 ms --- Ping statistics for host.com --5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss round-trip min/avg/max/std-dev = 1.000/1.200/2.000/0.400 ms 85

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85
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 information about the dynamic
domain name cache.
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 33
, the device wants to access the host by using an easy-to-remember domain name
rather than an IP address.
Configure static domain name resolution on the device so that the device can use the domain name
host.com to access the host whose IP address is 10.1.1.2.
Figure 33
Network diagram
Configuration procedure
# Configure a mapping between host name host.com and IP address 10.1.1.2.
<Sysname> system-view
[Sysname] ip host host.com 10.1.1.2
# Use the
ping host.com
command to verify that the device can use static domain name resolution to
resolve domain name host.com into IP address 10.1.1.2.
[Sysname] ping host.com
Ping host.com (10.1.1.2): 56 data bytes, press CTRL_C to break
56 bytes from 10.1.1.2: icmp_seq=0 ttl=255 time=1.000 ms
56 bytes from 10.1.1.2: icmp_seq=1 ttl=255 time=1.000 ms
56 bytes from 10.1.1.2: icmp_seq=2 ttl=255 time=1.000 ms
56 bytes from 10.1.1.2: icmp_seq=3 ttl=255 time=1.000 ms
56 bytes from 10.1.1.2: icmp_seq=4 ttl=255 time=2.000 ms
--- Ping statistics for host.com ---
5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss
round-trip min/avg/max/std-dev = 1.000/1.200/2.000/0.400 ms