Users Guide

Dell(conf-if-te-0/1)#ipv6 nd dns-server 1000::1 ?
<0-4294967295> Max lifetime (sec) which RDNSS address may be used for name resolution
infinite Infinite lifetime (sec) which RDNSS address may be used for name resolution
Dell(conf-if-te-0/1)#ipv6 nd dns-server 1000::1 1
Debugging IPv6 RDNSS Information Sent to the Host
To verify that you congured the IPv6 RDNSS information sent to the host correctly, use the debug ipv6 nd command in EXEC
Privilege mode.
Example of Debugging IPv6 RDNSS Information Sent to the Host
The last three lines indicate that the IPv6 RDNSS information was congured correctly.
Dell(conf-if-te-0/1)#do debug ipv6 nd tengigabitethernet 0/1
ICMPv6 Neighbor Discovery packet debugging is on for tengigabitethernet 0/1
Dell(conf-if-te-0/1)#00:13:02 : : cp-ICMPV6-ND: Sending RA on Te 0/1
current hop limit=64, flags: M-, O-,
router lifetime=1800 sec, reachable time=0 ms, retransmit time=0 ms
SLLA=00:01:e8:8b:75:70
prefix=1212::/64 on-link autoconfig
valid lifetime=2592000 sec, preferred lifetime=604800 sec
dns-server=1000::0001, lifetime=1 sec
dns-server=3000::0001, lifetime=1 sec
dns-server=2000::0001, lifetime=0 sec
If the DNS server information does not display, verify that you congured the IPv6 recursive DNS server on the correct interface.
Displaying IPv6 RDNSS Information
To display IPv6 interface information, including IPv6 RDNSS information, use the show ipv6 interface command in EXEC or EXEC
Privilege mode.
Examples of Displaying IPv6 RDNSS Information
The following example displays IPv6 RDNSS information. The output in the last 3 lines indicates that the IPv6 RDNSS was correctly
congured on interface te 1/1.
Dell#show ipv6 interface te 1/1
TenGigabitEthernet 1/1 is up, line protocol is up
IPV6 is enabled
Link Local address: fe80::201:e8ff:fe8b:7570
Global Unicast address(es):
1212::12, subnet is 1212::/64 (MANUAL)
Remaining lifetime: infinite
Global Anycast address(es):
Joined Group address(es):
ff02::1
ff02::2
ff02::1:ff00:12
ff02::1:ff8b:7570
ND MTU is 0
ICMP redirects are not sent
DAD is enabled, number of DAD attempts: 3
ND reachable time is 20120 milliseconds
ND base reachable time is 30000 milliseconds
ND advertised reachable time is 0 milliseconds
ND advertised retransmit interval is 0 milliseconds
ND router advertisements are sent every 198 to 600 seconds
ND router advertisements live for 1800 seconds
ND advertised hop limit is 64
IPv6 hop limit for originated packets is 64
ND dns-server address is 1000::1 with lifetime of 1 seconds
ND dns-server address is 3000::1 with lifetime of 1 seconds
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IPv6 Routing