Specifications

6 Software Release Note AlliedWare Plus Version 5.4.2-0.1 C613-10506-01-REV A
IPv6 enhancements
IPv6 on the switches now supports:
■ IPv6 RA Guard
Because an entire IPv6 network configuration can be modified by what is contained in
Router Advertisements, the network is vulnerable to rogue messages that are generated
either through misconfiguration or due to a malicious attack. RA Guard (RFC6105)
defends against these vulnerabilities by blocking RAs and redirects received from the
untrusted hosts connected to untrusted ports. For more information, see the IPv6
Introduction chapter in the Software Reference.
■ NTP over IPv6
In addition to existing support for NTP via IPv4 addresses, NTP on the switch is now able
to synchronize time via IPv6. NTP peer and NTP server addresses can now be specified in
the form of IPv6 addresses. For more information, see the NTP Introduction and
Configuration chapter in the Software Reference.
■ DHCP Relay over IPv6
While stateless address autoconfiguration is the IPv6 way of automatically configuring
hosts’ network information, it is not fully supported by some vendors, so Dynamic Host
Configuration Protocol is still commonly used. Where the DHCPv6 server does not reside
on the same IP subnet as its clients, a relay agent can act as an intermediate device
between the two subnets. Alliedware Plus DHCP relay now supports IPv6 addresses, in
addition to existing support for IPv4 addresses. For more information, see the Dynamic
Host Configuration Protocol (DHCP) Introduction chapter in the Software Reference.
■ DNS Relay over IPv6
In addition to existing support for DNS relay via IPv4, you can now access a domain name
server via an IPv6 network. For more information, see the Internet Protocol (IP) Addressing
and Protocols chapter in the Software Reference.