Cisco ME 3400 User Manual

36-8
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-07
Chapter 36 Configuring IPv6 Unicast Routing
Configuring IPv6
• ICMPv6 redirect functionality is not supported for IPv6 host routes (routes used to reach a specific
host) or for IPv6 routes with masks greater than 64 bits. The switch cannot redirect hosts to a better
first-hop router for a specific destination that is reachable through a host route or through a route
with masks greater than 64 bits.
• Load balancing using equal cost and unequal cost routes is not supported for IPv6 host routes or for
IPv6 routes with a mask greater than 64 bits.
• The switch cannot forward SNAP-encapsulated IPv6 packets.
Note There is a similar limitation for IPv4 SNAP-encapsulated packets, but the packets are
dropped at the switch.
• The switch routes IPv6-to-IPv4 and IPv4-to-IPv6 packets in hardware, but the switch cannot be an
IPv6-to-IPv4 or IPv4-to-IPv6 tunnel endpoint.
• Bridged IPv6 packets with hop-by-hop extension headers are forwarded in software. In IPv4, these
packets are routed in software but bridged in hardware.
• In addition to the normal SPAN and RSPAN limitations defined in the software configuration guide,
these limitations are specific to IPv6 packets:
– When you send RSPAN IPv6-routed packets, the source MAC address in the SPAN output
packet might be incorrect.
– When you send RSPAN IPv6-routed packets, the destination MAC address might be incorrect.
Normal traffic is not affected.
• The switch cannot apply QoS classification or policy-based routing on source-routed IPv6 packets
in hardware.
• The switch cannot generate ICMPv6 Packet Too Big messages for multicast packets.
Configuring IPv6
• Default IPv6 Configuration, page 36-9
• Configuring IPv6 Addressing and Enabling IPv6 Routing, page 36-9
• Configuring Default Router Preference, page 36-11
• Configuring IPv4 and IPv6 Protocol Stacks, page 36-12
• Configuring DHCP for IPv6 Address Assignment, page 36-13
• Configuring IPv6 ICMP Rate Limiting, page 36-16
• Configuring CEF for IPv6, page 36-17
• Configuring Static Routing for IPv6, page 36-17
• Configuring RIP for IPv6, page 36-19
• Configuring OSPF for IPv6, page 36-20
• Configuring EIGRP for IPv6, page 36-22

Cisco ME 3400 Specifications

General

Category	Switch
Rack Mountable	Yes
Jumbo Frame Support	Yes
Authentication Method	RADIUS, TACACS+
RAM	128 MB
Flash Memory	32 MB
Power Device	Internal power supply
Model	ME 3400
Layer	Layer 2
MAC Address Table Size	8000 entries
Remote Management Protocol	SNMP, Telnet, SSH, HTTP, HTTPS
Features	VLAN support, IGMP snooping, Quality of Service (QoS)
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.3x
Memory	128 MB
Power Supply	AC 120/230 V (50/60 Hz)
Dimensions (H x W x D)	4.4 cm x 44.5 cm x 24.2 cm
Routing Protocol	Static routing