Introduction - Patton OnSite 2701A/I User Manual

OnSite 2701A/I E1/T1 Ethernet Bridge (NTU) User Manual

Introduction

The 2701A offers a DHCP Server,
DNS relay can hold two DNS server IP addresses in memory so the DNS relay can forward DNS queries and
responses between the host user and the DNS server.
Configured Cannot be
Feature
DHCP DHCP Relay
Server
DHCP Relay DHCP Server
DNS Relay
NAT Bridged
DHCP Cli-
ent
(WAN
side)
Static IP
(WAN side)
Some comments on table
Routed means a 'routed WAN service' and Bridged means a 'bridged WAN service.'
•
DHCP Server and DHCP Relay cannot be used simultaneously.
•
NAT can be used only if a Routed WAN service is configured.
•
1
If a DHCP Server were used with a Bridged WAN service, the DHCP server would respond to IP address
•
requests from both interfaces, that is, the Ethernet and the WAN serial interfaces.
2
When NAT is used together with DHCP Relay, the WAN service must be routed.
•
3
• When DHCP Relay is used with a Bridged WAN service, the DHCP server must be on the same subnet as
the clients and the OnSite.
Introduction
Table 4. Features and services matrix
The feature in this column [...] with (Column 1 feature)
Must be used Usually used
used
Routed
Routed
4:
6 • DHCP and DNS Configuration
Can be used
Routed,
NAT
Routed 2
NAT
Routed,
DHCP Server
or
DHCP Relay
DHCP Server,
DHCP Relay,
DNS Relay
Routed
Rarely used
1
Bridged
3
Bridged
Bridged
45