Installation Guide
Table Of Contents
- PMP 450i and PTP 450i Configuration and User Guide
- Safety and regulatory information
- Contents
- List of Figures
- List of Tables
- About This Configuration and User Guide
- Chapter 1: Reference information
- Chapter 2: Configuration
- Preparing for configuration
- Task 1: Connecting to the unit
- Task 2: Configuring IP and Ethernet interfaces
- Configuring the AP IP interface
- NAT, DHCP Server, DHCP Client and DMZ in SM
- Configuring the SM IP interface with NAT disabled
- Configuring the SM IP interface with NAT enabled
- NAT tab of the SM with NAT disabled
- NAT tab of the SM with NAT enabled
- Reconnecting to the management PC
- VLAN Remarking and Priority bits configuration
- VLAN tab of the AP
- VLAN tab of the SM
- VLAN Membership tab of the SM
- PPPoE tab of the SM
- NAT Port Mapping tab of the SM
- Task 3: Upgrading the software version and using CNUT
- Task 4: Configuring General and Unit settings
- Task 5: Configuring security
- Isolating APs from the internet
- Encrypting radio transmissions
- Managing module access by passwords
- Requiring SM Authentication
- Filtering protocols and ports
- Encrypting downlink broadcasts
- Isolating SMs
- Filtering management through Ethernet
- Allowing management only from specified IP addresses
- Configuring management IP by DHCP
- Restricting radio Telnet access over the RF interface
- Security tab of the AP
- Filtering protocols and ports
- Protocol Filtering tab of the AP
- Port configuration tab of the AP
- Security tab of the SM
- Protocol Filtering tab of the SM
- Port Configuration tab of the SM
- Task 6: Configuring radio parameters
- Task 7: Setting up SNMP agent
- Task 8: Configuring syslog
- Task 9: Configuring remote access
- Task 10: Monitoring the AP-SM Link
- Task 11: Configuring quality of service
- Maximum Information Rate (MIR) Parameters
- Token Bucket Algorithm
- MIR Data Entry Checking
- Committed Information Rate (CIR)
- Bandwidth from the SM Perspective
- Interaction of Burst Allocation and Sustained Data Rate Settings
- High-priority Bandwidth
- Traffic Scheduling
- Setting the Configuration Source
- Quality of Service (QoS) tab of the AP
- DiffServ tab of the AP
- Quality of Service (QoS) tab of the SM
- DiffServ tab of the SM
- Task 12: Performing an Sector Wide SA
- Task 13: Zero Touch Configuration Using DHCP Option 66
- Task 14: Configuring Radio via config file
- Task 15: Configuring a RADIUS server
- Understanding RADIUS for PMP 450i
- Choosing Authentication Mode and Configuring for Authentication Servers - AP
- SM Authentication Mode – Require RADIUS or Follow AP
- Handling Certificates
- Configuring your RADIUS servers for SM authentication
- Assigning SM management IP addressing via RADIUS
- Configuring your RADIUS server for SM configuration
- Using RADIUS for centralized AP and SM user name and password management
- RADIUS Device Data Accounting
- RADIUS Device Re-authentication
PMP 450i and PTP 450i Configuration and User
Task 2: Configuring IP and Ethernet interfaces
Attribute Meaning
Timer Type
Keep Alive is the default timer type. This timer will enable a
keepalive that will check the status of the link periodically.
The user can set a keepalive period. If no data is seen from
the PPPoE server for that period, the link is taken down and a
reconnection attempt is started. For marginal links, the keep
alive timer can be useful so that the session will stay alive
over periodic dropouts. The keepalive timer must be set such
that the session can outlast any session drop. Some PPPoE
servers will have a session check timer of their own so that
the timeouts of the server and the SM are in sync, to ensure
one side does not drop the session prematurely.
Idle Timeout enables an idle timer that checks the usage of
the link from the customer side. If there is no data seen from
the customer for the idle timeout period, the PPPoE session is
dropped. Once data starts flowing from the customer again,
the session is started up again. This timer is useful for users
who may not be using the connection frequently. If the
session is idle for long periods of time, this timer will allow the
resources used by the session to be returned to the server.
Once the connection is used again by the customer, the link is
reestablished automatically.
Timer Period The length in seconds of the PPPoE keepalive timer.
TCP MSS
Clamping
If this is enabled, then the SM will alter TCP SYN and SYN-
ACK packets by changing the Maximum Segment Size to be
compatible with the current MTU of the PPPoE link. This way,
the user does not have to worry about MTU on the client side
for TCP packets. The MSS is set to the current MTU – 40 (20
bytes for IP headers and 20 bytes for TCP headers). This will
cause the application on the client side to not send any TCP
packets larger than the MTU. If the network is exhibiting
large packet loss, try enabling this option. This may not be an
option on the PPPoE server itself. The SM will NOT
reassemble IP fragments, so if the MTUs are incorrect on the
end stations, then MSS clamping will solve the problem for
TCP connections.
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pmp-0957 (April 2015)