4 automatic ip address assignment protocols, Automatic ip address assignment protocols -5 – Epson UB E02 User Manual
Page 77

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