Lenovo ThinkSystem NE2552E, Application Manual

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© Copyright Lenovo 2018 Chapter 22: Internet Protocol Version 6
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 DNS client
DNS commands support both IPv4 and IPv6 addresses. Link ‐ local addresses are
not supported. Use the following command to specify the type of DNS query to
be sent first:
If you set the request version to
ipv4
, the DNS application sends an
A
query
first, to resolve the hostname with an IPv4 address. If no
A
record is found for
that hostname (no IPv4 address for that hostname) an
AAAA
query is sent to
resolve the hostname with a IPv6 address.
If you set the request version to
ipv6
, the DNS application sends an
AAAA
query
first, to resolve the hostname with an IPv6 address. If no
AAAA
record is found
for that hostname (no IPv6 address for that hostname) an
A
query is sent to
resolve the hostname with an IPv4 address.
NE2552E(config)# ip dns ipv6 request-version { ipv4 | ipv6 }