Router Servers
Introduction to Servers
The Servers section of the MIB is used to define a variety of Server Types that may be used
in normal operation. A maximum of 4 entries are currently supported in the
serverTable (of any types). The types currently supported are:
| Server Type |
Description |
| KEEP ALIVE |
The KEEP ALIVE service allows the Router
to poll up to 4 servers every 60 seconds. If no response is received from
any of the KEEP ALIVE servers the router will automatically reset. KEEP
ALIVE servers may be used to ensure maximum availability of the router
service especially in unattended application. NOTE: In order to ensure
that the router does not reset due to the user inadvertently removing a
server, is better practice to always use at least two KEEP ALIVE servers. |
| TIME SERVICE |
The Time Service will obtain a Time of Day
and Day of Week service from a nominated ZyTrax Time Server. This service
is mandatory when using Time of Day Routing features with any non
continuous entries (see). |
| DNS |
Allows URLs to be used instead of IP
addresses for certain server types and MANDATORY when using the Proxy DNS
service for NAT Thin Proxy configurations. |
| SNMP TRAP |
SNMP TRAP servers allow reception of TRAP
events (alarms) for router exceptions and Security Intrusion Detection
services. |
| RADIUS |
Allows a RADIUS server to be used for
Authentication and or Accounting information. |
| DHCP |
When a DHCP server is defined and the DHCP
service is enabled then the router becomes a BOOTP relay agent and all
DHCP requests are forwarded to this server. |
Configuration
The Server entries are
configured using the MIB entries (up to 4 are allowed) in the serverTable
(zytrax\router\servers\serverTable\serverTableEntry)using CoolFig (V 2.1+)
or Control Server (4.00+) (both available here).
The serverTable consists of the
following entries.
| MIB Name |
Meaning |
| serverType |
0 = KEEP ALIVE server entry
1 = Time Server entry
2 = DNS entry
3 = SNMP TRAP entry
4 = RADIUS server entry
5 = DHCP server entry
|
| serverIP |
Specifies the IP address
of the server (may not be required if the serverName entry is being
used with a DNS server type defined).
|
| serverName |
The URL of the server the following notes apply:
- Time Service URL is time.zytrax.com
- DNS cannot use a URL entry
- In
all other cases the nominated DNS server must contain an entry for the server
being used.
|
Notes
- To activate a new or updated serverTable the normal run time table update method should be
followed e.g. select serverNum
then Update (without changing its value). The router will immediately use the
new values.
- To remove an entry in the serverTable set the value of
serverType to 255.
