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2E4X-27R Overview
2E48-27R/2E49-27R User’s Guide 1-5
For more information about SmartTrunk, refer to the Cabletron Systems
SmartTrunk User’s Guide
.
1.3.4 Runtime IP Address Discovery
This feature enables the 2E4X-27R to automatically accept an IP address
from a Boot Strap Protocol (BootP) server on the network into NVRAM
without requiring a user to enter an IP address through Local
Management.
When the 2E4X-27R is connected to the network and powered up,
Runtime IP Address Discovery (RAD) checks the 2E4X-27R for an IP
address. If one has not yet been assigned (2E4X-27R IP address set to
0.0.0.0), RAD checks to see if any of the 2E4X-27R interfaces have a
link. If so, RAD sends out Reverse Address Resolution Protocol (RARP)
and BootP requests to obtain an IP address from a BootP or RARP server
on the network.
The RAD requests start out at an interval of 1 second. The interval then
doubles after every transmission until an interval of 300 seconds is
reached. At this point, the interval remains at 300 seconds. The RAD
requests continue until an IP address is received from a BootP or RARP
server, or an IP address is entered using Local Management.
1.3.5 Management
Management of the 2E4X-27R is accomplished using SNMP compliant
management tools for in-band management. Out-of-band Local
Management is provided through the RJ45 COM port on the front panel
using a VT100 terminal or a VT100 terminal emulator. Local
Management can also be accessed through a Telnet connection to the
RJ45 COM port.
Local Management provides the ability to manage the 2E4X-27R and any
of the optional Fast Ethernet Interface Modules installed in ports 25 and
26 and the optional High Speed Interface Module (HSIM).
The user’s guide for the HSIM provides detailed information about Local
Management for the HSIM.
Information about how to access and use Local Management is contained
in Chapter 5.