Enable Sending Of Multicast Echo Replies; Configuring Ipv6 Dns; Configuring Static Ipv6 Domain Name Resolution; Configuring Dynamic Ipv6 Domain Name Resolution - H3C S5500-SI Series Operation Manual

Operation Manual – IPv6
H3C S5500-SI Series Ethernet Switches

1.7.2 Enable Sending of Multicast Echo Replies

If hosts are capable of relying multicast echo requests, Host A can attack Host B by
sending an echo request with the source being Host B to a multicast address, then all
the hosts in the multicast group will send echo replies to Host B. Therefore, a device is
disabled from replying multicast echo requests by default.
Follow these steps to enable sending of multicast echo replies:
Enter system view
Enable sending of
multicast echo replies

1.8 Configuring IPv6 DNS

1.8.1 Configuring Static IPv6 Domain Name Resolution

Configuring static IPv6 domain name resolution is to establish the mapping between
host name and IPv6 address. When applying such applications as Telnet, you can
directly use a host name and the system will resolve the host name into an IPv6
address. Each host name can correspond to only one IPv6 address.
Follow these steps to configure static IPv6 domain name resolution:
Enter system view
Configure a host name and the
corresponding IPv6 address

1.8.2 Configuring Dynamic IPv6 Domain Name Resolution

If you want to use the dynamic domain name function, you can use the following
command to enable the dynamic domain name resolution function. In addition, you
should configure a DNS server so that a query request message can be sent to the
correct server for resolution. The system can support at most six DNS servers.
You can configure a DNS suffix so that you only need to enter some fields of a domain
name and the system can automatically add the preset suffix for address resolution.
The system can support at most 10 DNS suffixes.
Follow these steps to configure dynamic IPv6 domain name resolution:
To do...
system-view
ipv6 icmpv6
multicast-echo-reply enable
To do...
Chapter 1 IPv6 Basics Configuration
Use the command...
Use the command...
system-view
ipv6 host hostname
ipv6-address
1-22
Remarks
—
Not enabled by
default.
Remarks
—
Required