EMM-E6 Ethernet User's Guide

CHAPTER 1:

INTRODUCTION

1-32 EMM-E6 User’s Guide

For any SNMP Trap-generating network devices not residing on the same

subnet as the network management station, the default Subnet Mask

utilized on that device must be altered to match the subnet scheme. In the

above example, the default Subnet Mask is modiﬁed from

255. 255. 255. 0 to 255. 255. 255. 240. For each SNMP Trap-generating

device with a modiﬁed Subnet Mask, a Default Gateway is assigned. In

the event that any of the custom-masked devices generated an SNMP Trap

for the network management station, a comparison of the Subnet Mask

and the Network ID indicates that the SNMP Trap should be sent to that

subnet’s Default Gateway to be routed to the subnet where the network

management station resides. The procedures for modifying the Subnet

Mask and conﬁguring the Default Gateway through Local Management

may be found in Chapter 7 of this User’s Guide, which deals with the

Conﬁguration Screen.

CH1Book Page 32 Wednesday, March 20, 1996 7:48 AM