Docstoc

appdx_a

Document Sample
appdx_a Powered By Docstoc
					                                                                                           109


A P P E N D I X    A


Configurable Parameters and
Defaults


              In Routing and RAS Admin, you can configure global settings (such as
              parameters for RIP for IP) or interface-specific settings (such as parameters
              for a RIP for IP interface). To determine the proper values for these settings,
              research your network configuration prior to installing and configuring
              Routing and Remote Access Service.


IP Global and Interface Parameters
              Depending on what routing protocols you add to IP, you can configure global
              and per-interface settings for IP, OSPF, RIP for IP, and DHCP Relay Agent. The
              rest of this appendix shows the parameters that are available for you to
              configure and the defaults with which they are installed.


IP Global Parameters
              You determine preference levels for the IP protocol by configuring global
              settings.

             To configure IP global settings
              1. Under IP Routing, right-click Summary.
              2. Click Configure IP parameters.
              3. Set the preference level for IP protocols on the Preference Levels tab.

              If two routes exist to the same destination, then the route that is learned by
              the protocol with the smaller number is preferred over the route that is
110   Administrator’s Guide


                  learned by the protocol with the higher number. See Table A.1 for preference
                  level defaults.
                               Appendix A    Configurable Parameters and Defaults          111

            Table A.1 Preference Levels
            Routing protocol         Default
            Static routes            1
            SNMP routes              2
            OSPF                     3
            RIP version 2 for IP     4


IP Interface Parameters
            You can configure per-interface settings for the IP protocol such as setting
            route discovery advertisements and configuring packet filters.

           To configure IP interface settings
            1. Under IP Routing, click Summary.
            2. Right-click an interface.
            3. Click Configure interface.

            Router discovery advertisements are disabled by default when you install
            Routing and Remote Access Service. Table A.2 shows defaults of configurable
            parameters.

            Table A.2 IP Interface Parameters
            Parameter                    Default
            Level of preference          0
            Advertisement rate           10 seconds
            Advertisement lifetime       30 seconds

            Packet filters are disabled by default. Packet filters are set by exception and
            can be configured to allow or deny those packets that you specify. Use the
            following criteria to define a filter:

             IP source and destination address
             TCP source and destination port
             UDP source and destination port
             ICMP type and code
             IP protocol identifier
112   Administrator’s Guide
                           Appendix A     Configurable Parameters and Defaults          113


OSPF by Bay Networks Global Parameters
            OSPF is a complex protocol and should be configured by network
            administrators experienced in enterprise networking. Many OSPF parameters
            can be set to defaults as recommended by Microsoft and Bay Networks.
            However, setting other defaults requires knowledge of your network
            configuration.

           To configure OSPF global settings
            1. Under IP Routing, right-click OSPF by Bay Networks.
            2. Click Configure OSPF.

            To set the router identification number, in the OSPF Configuration dialog box
            click the General tab.

            OSPF requires that each router have a unique router identification number.
            Routing and Remote Access Service assigns the IP address of the first LAN
            adapter bound by Windows NT as the default OSPF router identification
            number. This assumes that your static or DHCP-assigned IP addresses are
            unique within your network. If your network uses a different scheme for
            assigning OSPF router identifications, make sure to write down the
            configuration for reference purposes.

            On the Areas tab, you can see that OSPF installs the backbone area, 0.0.0.0,
            as the only configured area for the router. To add other areas, click Add.

            OSPF is installed with no virtual interfaces. If your network uses OSPF virtual
            interfaces, configure virtual interfaces after installation on the Virtual
            Interfaces tab.


OSPF by Bay Networks Interface Parameters
            The parameters and defaults listed in this section apply to OSPF LAN
            interfaces and OSPF demand-dial interfaces. Configure these parameters
            after installation by using the General, Neighbors, and Advanced tabs in the
            OSPF Configuration dialog box. You can also configure area ID,
            authentication password, and non-broadcast multiple access (NBMA)
            neighbors.
114   Administrator’s Guide


                 To configure OSPF interface settings
                  1. Under IP Routing, click OSPF by Bay Networks.
                  2. Right-click an interface.
                  3. Click Configure interface.
                  By default, OSPF is disabled on a new interface.
                  Appendix A     Configurable Parameters and Defaults   115


Table A.3 shows the defaults for LAN interfaces.

Table A.3 OSPF LAN Interface Parameters
Parameter                  Default
Transit delay              1 second
Retransmit interval        5 seconds
Hello interval             10 seconds
Dead interval              40 seconds
Poll interval              120 seconds
MTU size                   1500 bytes
Router priority            1
Cost                       2
Type                       Broadcast

Table A.4 shows the defaults for point-to-point interfaces.

Table A.4 OSPF Point-to-Point Interface Parameters
Parameter              Default
Transit delay          1 second
Retransmit interval    10 seconds
Hello interval         15 seconds
Dead interval          60 seconds
Poll interval          120 seconds
MTU size               1500 bytes
Router priority        1
Cost                   4
Type                   Point-to-point
116   Administrator’s Guide


RIP for IP Global Parameters
                  You can configure global settings for the RIP for IP protocol such as setting
                  the update rate and route filters.

                 To configure RIP for IP global settings
                  1. Under IP Routing, right-click RIP for Internet Protocol.
                  2. Click Configure RIP.

                  In the RIP for IP Configuration dialog box:

                   On the General tab, the default minimum-triggered-update rate is 5
                    seconds for both LAN and demand-dial interfaces.
                   On the Security tab, you can set route filters to permit or deny
                    announcements from routers that you add to the Routers box.

RIP for IP Interface Parameters
                  The parameters and defaults listed in this section apply to RIP for IP LAN
                  interfaces and RIP for IP demand-dial interfaces. Configure these parameters
                  after installation by using the General, Security, Neighbors, and Advanced
                  tabs in the RIP Configuration dialog box.

                 To configure RIP for IP interface settings
                  1. Under IP Routing, click RIP for Internet Protocol.
                  2. Right-click an interface.
                  3. Click Configure interface.

                  Table A.5 shows the defaults for LAN interfaces.

                  Table A.5 RIP for IP LAN Interface Parameters
                  Parameter                      Default
                  Operation mode                 Periodic Update
                  Outgoing packet protocol       RIP version 1 broadcast
                  Incoming packet protocol       RIP versions 1 and 2
                  Added cost for interface       1
                                                                   (continued)
                   Appendix A   Configurable Parameters and Defaults   117


Parameter                       Default
Tag                             0
Authentication                  Disabled
Periodic announcements          30 seconds
Route expiration                180 seconds
Route removal time              120 seconds
Split horizon                   Enabled
Poison reverse                  Enabled
Triggered updates               Enabled
Clean up when stopping          Enabled

Table A.6 shows the defaults for demand-dial interfaces.

Table A.6 RIP for IP Demand-Dial Interface Parameters
Parameter                           Default
Operation mode                      Autostatic
Outgoing packet protocol            RIP version 2 multicast
Incoming packet protocol            RIP version 2
Added cost for interface            1
Tag                                 0
Authentication                      Disabled
Periodic announcements              30 seconds
Route expiration                    180 seconds
Route removal time                  120 seconds
Split horizon                       Enabled
Poison reverse                      Enabled
Triggered updates                   Disabled
Clean up when stopping              Enabled
118   Administrator’s Guide


DHCP Relay Agent Global Parameters
                  You can configure global settings for the DHCP Relay Agent in order to
                  configure addresses for your DHCP servers.

                 To configure DHCP Relay Agent global settings
                  1. Under IP Routing, right-click DHCP Relay Agent.
                  2. Click Configure DHCP Relay Agent.

                  In the DHCP Relay Agent Configuration dialog box, you must configure the
                  DHCP server table with addresses for DHCP servers on your network. Note
                  the name and IP number of the DHCP server before installing the Routing
                  and Remote Access Service DHCP Relay Agent.


DHCP Relay Agent Interface Parameters
                  You can configure per-interface settings for the DHCP Relay Agent such as
                  hop-count and seconds-since-boot thresholds.

                 To configure DHCP Relay Agent interface settings
                  1. Under IP Routing, click DHCP Relay Agent.
                  2. Right-click an interface.
                  3. Click Configure interface.

                  By default, the DHCP Relay Agent is enabled on each interface with the
                  defaults shown in Table A.7.

                  Table A.7 DHCP Relay Agent Interface Parameters
                  Parameter                       Default
                  Hop-count threshold             4
                  Seconds-since-boot threshold    4

                  The hop-count threshold is the maximum number of DHCP Relay Agents that
                  can forward a request. You can use this setting to prevent request packets
                  from entering infinite loops.
              Appendix A   Configurable Parameters and Defaults       119


The seconds-since-boot threshold is the minimum time that the DHCP Relay
Agent waits before forwarding the DHCP request to the DHCP server.
120   Administrator’s Guide


IPX Global and Interface Parameters
                  If you have the NWLink IPX/SPX–Compatible Transport protocol installed
                  before you install Routing and Remote Access Service, IPX Routing is
                  automatically installed with these routing protocols:

                   IPX NetBIOS Broadcasts
                   RIP for IPX
                   SAP for IPX
                  You can configure global logging options for each protocol. The following
                  sections describe the per-interface parameters that you can configure for
                  each protocol.


IPX Interface Parameters
                  You can configure per-interface settings for the IPX protocol such as setting
                  the dial-in control protocol and configuring packet filters.

                 To configure IPX interface settings
                  1. Under IPX Routing, click Summary.
                  2. Right-click an interface.
                  3. Click Configure interface.

                  In the IPX Configuration dialog box, you can select which type of dial-in
                  control protocol you want to use on the interface: IPX Control Protocol (IPX
                  CP) or IPX WAN. For demand-dial interfaces, the demand-dial control
                  protocol defaults to IPX CP.

                  IPX is automatically enabled on every interface.

                  Packet filters are disabled by default. Packet filters are defined by exception
                  and can be configured to either allow or deny all packets added to the
                  exception list. Use the following criteria to define a filter:

                   The network number, network mask, node, and socket for the IPX source
                    and destination
             Appendix A   Configurable Parameters and Defaults   121


 IPX packet type
122   Administrator’s Guide


IPX NetBIOS Broadcast Interface Parameters
                  You can configure per-interface settings for NetBIOS broadcast in order to
                  configure LAN interfaces and demand-dial interfaces.

                 To configure IPX NetBIOS Broadcast interface settings
                  1. Under IPX Routing, click NetBIOS Broadcasts.
                  2. Right-click an interface.
                  3. Click Configure interface.

                  Table A.8 shows the defaults for LAN interfaces.

                  Table A.8 IPX NetBIOS LAN Broadcast Interface Parameters
                  Parameter                 Default
                  Accept broadcasts         Enabled
                  Deliver broadcasts        Always

                  Table A.9 shows the defaults for demand-dial interfaces.

                  Table A.9 IPX NetBIOS Demand-Dial Broadcast Interface Parameters
                  Parameter                 Default
                  Accept broadcasts         Disabled
                  Deliver broadcasts        Never


RIP for IPX Interface Parameters
                  You can configure LAN and demand-dial interface settings for RIP for IPX.

                 To configure RIP for IPX interface settings
                  1. Under IPX Routing, click RIP for IPX.
                  2. Right-click an interface.
                  3. Click Configure interface.
                               Appendix A   Configurable Parameters and Defaults        123


            Table A.10 shows the defaults for LAN interfaces.

            Table A.10 RIP for IPX LAN Interface Parameters
            Parameter                          Default
            Advertise routes                   Enabled
            Accept route advertisements        Enabled
            Update mode                        Standard
            Update interval                    60 seconds
            Aging interval multiplier          3

            Table A.11 shows the defaults for demand-dial interfaces.

            Table A.11 RIP for IPX Demand-Dial Interface Parameters
            Parameter                          Default
            Advertise routes                   Enabled
            Accept route advertisements        Enabled
            Update mode                        No update
            Update interval                    N/A
            Aging interval multiplier          N/A
            Filters can be configured on a per-interface basis to allow or deny RIP routes
            from a network number and mask that you supply.


SAP for IPX Interface Parameters
            You can configure LAN and demand-dial interface settings for SAP for IPX.

           To configure SAP for IPX interface settings
            1. Under IPX Routing, click SAP for IPX.
            2. Right-click an interface.
            3. Click Configure interface.

            Table A.12 shows the defaults for LAN interfaces.
124   Administrator’s Guide

                  Table A.12 SAP for IPX LAN Interface Parameters
                  Parameter                          Default
                  Advertise services                 Enabled
                  Accept service advertisements      Enabled
                  Reply to get nearest server        Enabled
                  requests
                  Update mode                        Standard
                  Update interval                    60 seconds
                  Aging interval multiplier          3

                  Table A.13 shows the defaults for demand-dial interfaces.

                  Table A.13 SAP for IPX Demand-Dial Interface Parameters
                  Parameter                          Default
                  Advertise services                 Enabled
                  Accept service advertisements      Enabled
                  Reply to get nearest server        Enabled
                  requests
                  Update mode                        No update
                  Update interval                    N/A
                  Aging interval multiplier          N/A
                  Filters can be configured on a per-interface basis to allow or deny SAP
                  advertisements from a service type and service name that you supply.
          Appendix A   Configurable Parameters and Defaults   125




                       BLANK PAGE

IMPORTANT: This text will appear on screen, but
will not print on a PostScript printer.
This page should be the last one in this file; it
was inserted by running the InsertBlankPage
macro.
Do not type any additional text on this page!

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:0
posted:2/14/2012
language:
pages:17