3Com 3C840 - Manual (Page 32)

1-12 C HAPTER 1: O VERVIEW
configurations. See the table below for information about which
switches to set for which configurations.
Table 1–2 DIP Switch Modes
■ DHCP Smart Mode — (switch 2 on; all other switches off) This
setting simplifies the configuration process by setting up the
OfficeConnect Remote 840 as a DHCP and DNS server with a fixed IP
address. For more information, see Chapter 2 of the Installation
Guide.
■ Default Bridge Mode — There are several different settings for
Default Bridge Mode. The different settings control the WAN
operational mode; ATM or Frame Relay, and the VPI/VCI or DLCI
settings (see the table above). If you set the OfficeConnect Remote
840 to this mode and no configuration exists, the OfficeConnect
Remote 840 will automatically set up a bridge network on the
Ethernet and will create a VC profile that bridges using RFC 1483 or
RFC 1490 encapsulation with various VPI/VCI or DLCI values (see the
table above for details).
DIP Switch
1 2 3 4 Mode
off off off on Default Bridge Mode, Frame Relay, DLCI = 528, data
encapsulated over RFC 1483.
off off on off Default Bridge Mode, Frame Relay, DLCI = 16, data
encapsulated over RFC 1490.
off on off off DHCP Smart Mode
on off off on Default Bridge Mode, ATM, One VC define as a bridge,
VPI/VCI = 0/38
off off off off Unconfigured Mode
All other configurations: Unconfigured Mode
840ug.book Page 12 Friday, July 7, 2000 2:23 PM