Users Guide

IPv6 destination unreachable
By default, when no matching entry for an IPv6 route is found in the IPv6 routing table, a packet drops and no error message is
sent. You can enable the capability to send an IPv6 destination unreachable error message to the source without
dropping the packet.
Enable IPv6 unreachable destination messaging
OS10(config)# interface ethernet 1/1/8
OS10(conf-if-eth1/1/8)# ipv6 unreachables
IPv6 hop-by-hop options
A hop-by-hop header extension in an IPv6 packet contains options that are processed by all IPv6 routers in the packet's path.
By default, hop-by-hop header options in an IPv6 packet do not process locally. To enable local processing of IPv6 hop-by-hop
options on an interface, use the ipv6 hop-by-hop command.
Enable IPv6 hop-by-hop options forwarding
OS10(config)# interface ethernet 1/1/8
OS10(conf-if-eth1/1/8)# ipv6 hop-by-hop
View IPv6 information
To view IPv6 configuration information, use the show ipv6 route command. To view IPv6 address information, use the
show address ipv6 command.
View IPv6 connected information
OS10# show ipv6 route connected
Codes: C - connected
S - static
B - BGP, IN - internal BGP, EX - external BGP
O - OSPF,IA - OSPF inter area, N1 - OSPF NSSA external type 1,
N2 - OSPF NSSA external type 2, E1 - OSPF external type 1,
E2 - OSPF external type 2, > - non-active route
Gateway of last resort is not set
Destination Gateway Dist/Metric Last Change
-----------------------------------------------------------------
C 2001:db86::/32 via 2001:db86:fff::1 ethernet1/1/1 0/0 00:03:24
View IPv6 static information
OS10# show ipv6 route static
Codes: C - connected
S - static
B - BGP, IN - internal BGP, EX - external BGP
O - OSPF,IA - OSPF inter area, N1 - OSPF NSSA external type 1,
N2 - OSPF NSSA external type 2, E1 - OSPF external type 1,
E2 - OSPF external type 2, > - non-active route
Gateway of last resort is not set
Destination Gateway Dist/Metric Last Change
------------------------------------------------------------------
S 2111:dddd:eee::22/12via 2001:db86:fff::2 ethernet1/1/1 1/1 00:01:24
IPv6 RA Guard
The IPv6 Router Advertisement (RA) guard feature prevents the OS10 switch from receiving unwanted and rouge RA messages
from its neighbor devices. RA guard inspects and validates the RA messages against the policy that you configured. Depending
on the validation result, RA guard forwards or drops the packets that match the policy conditions.
904
Layer 3