beautypg.com

4 automatic ip address assignment protocols, Automatic ip address assignment protocols -5 – Epson UB E02 User Manual

Page 77

background image

Rev. A

Specifications 5-5

UB-E02 Technical Reference Guide

❏ PDU support

Get Request

Get Next Request

Set

Request

Get

Response

Trap

❏ Server port number

161

❏ Trap sending port number

162

5.5.3.3 ENPC

❏ Protocol:

UDP/IP

❏ UDP port number:

3289

❏ Compatible packet types:

Probe
Initialize
Query
Setup
Notify

5.5.4 Automatic IP Address Assignment Protocols

The UB-E02 supports the DHCP and APIPA protocols for automatic IP address assignment. The
automatic assignment is performed according to the following sequence, and if a protocol is
disabled or fails, the next protocol is tried. When an IP address is acquired, the next protocol is
not tried.

5.5.4.1 IP Address Acquisition by DHCP

❏ Items to acquire:

IP address, subnet mask, gateway address

❏ DHCP Discover retries:

4 times

❏ DHCP Discover retry interval:

1st: 4 seconds

2nd: 7 seconds

3rd: 15 seconds 4th: 32 seconds

❏ DHCP Request retries:

10 times

❏ DHCP Request retry interval:

15 seconds

Protocol

Sequence

Application

DHCP

1

Acquires IP address

APIPA

2

Assigns IP address

manual setting

3

Uses the internal set parameters