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If the interface has no DNS suffix information specified, no RA messages are triggered.
Each time the device sends an RA message from an interface, it immediately refreshes the RA
message advertisement interval for that interface.
Examples
# Enable DNS suffix suppression in RA messages on VLAN-interface 100.
<Sysname> system-view
[Sysname] interface vlan-interface 100
[Sysname-Vlan-interface100] ipv6 nd ra dns search-list suppress
Related commands
ipv6 nd ra dns search-list
ipv6 nd ra dns server
Use
ipv6 nd ra dns server
to specify DNS server information to be advertised in RA
messages.
Use
undo ipv6 nd ra dns server
to remove a DNS server from RA message advertisement.
Syntax
ipv6 nd ra dns server ipv6-address
[
seconds
|
infinite
]
sequence seqno
undo ipv6 nd ra dns server ipv6-address
Default
DNS server information is not specified and RA messages do not carry DNS server options.
Views
Interface view
Predefined user roles
network-admin
Parameters
ipv6-address
: Specifies the IPv6 address of the DNS server, which must be a global unicast
address or a link-local address.
seconds
: Specifies the lifetime of the DNS server, in seconds. The value range is 4 to
4294967295. Value 4294967295 indicates that the lifetime of the DNS server is infinite.
infinite
: Sets the lifetime of the DNS server to infinite.
sequence seqno
: Specifies the sequence number of the DNS server, in the range of 0 to
4294967295. The sequence number for a DNS server must be unique. A smaller sequence number
represents a higher priority.
Usage guidelines
The DNS server option in RA messages provides DNS server information for hosts. The RA
messages allow hosts to obtain their IPv6 addresses and the DNS server through stateless
autoconfiguration. This method is useful in a network where DHCPv6 infrastructure is not provided.
The default lifetime of the DNS server is three times the maximum interval for advertising RA
messages. To set the maximum interval, use the
ipv6 nd ra interval
command.
You can configure a maximum of eight DNS servers on an interface. One DNS server option
contains one DNS server. All DNS server options are sorted in ascending order of the DNS server
sequence number.
Summary of Contents for SOHO IE4300
Page 285: ...i Contents Tcl commands 1 cli 1 tclquit 1 tclsh 2...
Page 288: ...i Contents Python commands 1 exit 1 python 1 python filename 2...
Page 291: ...i Contents Automatic configuration commands 1 autodeploy udisk enable 1...
Page 323: ...25 Sysname Ten GigabitEthernet1 0 51 undo shutdown Related commands irf port...
Page 465: ...ii stp vlan enable 55 vlan mapping modulo 55...
Page 602: ...12 Related commands display mvrp statistics...
Page 609: ...i Contents VLAN mapping commands 1 display vlan mapping 1 vlan mapping 2...
Page 678: ...9 Related commands reset pppoe relay statistics...
Page 846: ...i Contents Basic IP forwarding commands 1 display fib 1 ip forwarding table save 2...
Page 1770: ...i Contents Time range commands 1 display time range 1 time range 1...
Page 2026: ...34 Related commands display mac authentication...
Page 2028: ...ii...
Page 2143: ...i Contents User profile commands 1 display user profile 1 user profile 2...
Page 2308: ...61 ipsec transform set...
Page 2531: ...i Contents SAVI commands 1 ipv6 savi down delay 1 ipv6 savi log enable 1 ipv6 savi strict 2...
Page 2534: ...3 Sysname ipv6 savi strict Related commands ipv6 verify source...
Page 2791: ...14 Sysname track 1 Related commands delay display track...
Page 2939: ...9 sntp authentication keyid sntp reliable authentication keyid...
Page 2967: ...27 Related commands apply poe profile poe enable poe max power interface view poe priority...