245
Advanced Troubleshooting and Repair
DHCP discovery
OR
DHCP OFFER X
REJ
DHCP server does not
have enough IP
addresses.
Create a larger scope with more IP
addresses on the DHCP server.
DHCP server is acting
up and cannot assign IP
addresses for the
corresponding subnet,
even though there are
enough IP addresses.
For a Microsoft DHCP server, reboot the
server.
For the controller internal DHCP server,
disable DHCP and rebuild the scope.
L2 switch port is shut
down or not configured
properly.
Check the L2 switch, and ensure that the
port is not shut down. Ensure that this port
can access the DHCP server subnet (that
is, access the port for the same VLAN,
etc.).
DHCP Discovery
OR
DHCP OFFER X
REJ
(VLAN) (after
releasing the first IP
from the native
DHCP server)
DHCP Option 125 or 43
(DHCP Option 130
-MITEL IP PHONE prior
to Release 4.0) is not
programmed up on the
second scope of the
DHCP server (or on the
second DHCP server).
OR
VLAN ID is not
assigned properly.
1. Identify if there is one DHCP server for
both VLANs, or if there is one DHCP
server per VLAN .
2. For one DHCP server for both VLANs,
ensure that
option 125/43 (option 130
prior to Release 4.0) is programmed in
the scope of Voice LAN as String type
with value of “MITEL IP PHONE”.
3. For one DHCP server per VLAN, ensure
that option 125/43 (option 130 prior to
Release 4.0) is defined in both DHCP
servers properly.
4. Verify that the vlan tag in the option 125
or 43 data string (option 132 prior to
Release 4.0) is set to assign to the
proper VLAN ID.
One DHCP server for
two VLANs network
configuration: IP helper
(sometimes called
DHCP Relay) address
on the router interface
is not set up correctly.
On the router interface (in which DHCP is
not residing), enter the IP helper address
and specify the IP address of the DHCP
server on the other side of the subnet (that
is, always set up IP helper address on the
DHCP client side).
Ensure the second scope is created for the
corresponding VLAN.
Table 46: IP Phone Registration Troubleshooting (continued)
Error Message on
Display
Probable Cause
Corrective Action
(Page 2 of 5)
Summary of Contents for SX-200 ICP - 1.0 5020
Page 1: ...Release 4 0 CX CXi Controller TECHNICIAN S HANDBOOK ...
Page 9: ...Chapter 1 Introduction ...
Page 10: ...2 SX 200 ICP CX CXi Technician s Handbook ...
Page 24: ...16 SX 200 ICP CX CXi Technician s Handbook ...
Page 25: ...Chapter 2 Basic Installation ...
Page 26: ...18 SX 200 ICP CX CXi Technician s Handbook ...
Page 75: ...Chapter 3 Basic Programming ...
Page 76: ...68 SX 200 ICP CX CXi Technician s Handbook ...
Page 89: ...81 Basic Programming The keys on the 5412 PKM are numbered as follows ...
Page 98: ...90 SX 200 ICP CX CXi Technician s Handbook Figure 10 Administrator Mailbox Menu ...
Page 142: ...134 SX 200 ICP CX CXi Technician s Handbook ...
Page 143: ...Chapter 4 Advanced Installation and Programming ...
Page 144: ...136 SX 200 ICP CX CXi Technician s Handbook ...
Page 183: ...Chapter 5 Routine Maintenance ...
Page 184: ...176 SX 200 ICP CX CXi Technician s Handbook ...
Page 219: ...Chapter 6 Basic Troubleshooting and Repair ...
Page 220: ...212 SX 200 ICP CX CXi Technician s Handbook ...
Page 245: ...Chapter 7 Advanced Troubleshooting and Repair ...
Page 246: ...238 SX 200 ICP CX CXi Technician s Handbook ...
Page 269: ...Appendix A Default Database Values ...
Page 270: ...262 SX 200 ICP CX CXi Technician s Handbook ...
Page 326: ...318 SX 200 ICP CX CXi Technician s Handbook ...
Page 327: ...Appendix B Part Numbers ...
Page 328: ...320 SX 200 ICP CX CXi Technician s Handbook ...
Page 336: ...328 SX 200 ICP CX CXi Technician s Handbook ...
Page 337: ...Appendix C System Cabling ...
Page 338: ...330 SX 200 ICP CX CXi Technician s Handbook ...
Page 343: ...Appendix D Folio Views E Docs Tips ...
Page 344: ...336 SX 200 ICP CX Technician s Handbook ...