Reference Guide

184 IP Addressing
An intermediary transition mechanism is required for IPv6-only nodes to
communicate with IPv6 nodes over an IPv4 infrastructure. The tunneling
mechanism implemented is the Intra-Site Automatic Tunnel Addressing
Protocol (ISATAP). This protocol treats the IPv4 network as a virtual IPv6
local-link, with each IPv4 address mapped to a Link Local IPv6 address.
IPv4 Interface Assignment
An IPv4 interface can be assigned on the following types of interfaces:
• OOB
By default, a switch has a single IP interface assigned on the OOB port.
This IP interface cannot be removed.
• In-Band on the R1-2401
Additional IP interfaces can be assigned depending on the switch's
operational system mode: Layer 2 or Layer 2 + Static Routing mode.
– In Layer 2 mode, only one additional IP interface can be assigned on
any of the in-band interfaces (port, LAG or VLAN).
– In Layer 2 + Static Routing mode, up to 32 IP interfaces can be
assigned on one or more in-band interfaces.
• In-Band on the R1-2210
Up to 32 IP interfaces can be assigned on one or more in-band interfaces
(port, LAG or VLAN).
IPv4 Address Assignment
IPv4 addresses can be assigned to OOB and in-band interfaces. They can be
assigned either statically or dynamically (by a DHCP server).
By default, the IPv4 address of the OOB is assigned dynamically from a
DHCP server. If the DHCP server is not accessible, the OOB uses the default
IP address 192.168.2.1. After a static or DHCP valid IP address is assigned on
the OOB interface, the default IP address is removed.
NOTE: The user cannot assign the default subnet statically on an in-band
interface, since it is reserved for default connectivity on the OOB in case the DHCP
server is not accessible.