Routing Information
192
Model LRA2900A RAS Administrators’ Reference Guide
15 • IP
The IP Routing Information window also has a link to the O/S forwarding table where the forwarding param-
eters are displayed (“O/S forwarding table window” on page 195).
Destination (ipRouteDest)
The destination IP address of this route. An entry with a value of 0.0.0.0 is considered a default route. Multiple
routes to a single destination can appear in the table, but access to such multiple entries is dependent on the
table-access mechanisms defined by the network management protocol in use.
To view or modify next-hop routing information for each destination, click on a destination link in the
Desti-
nation
column. For more information about modifying next-hop routing information settings, refer to “IP
Routing Destination window” on page 197.
Mask (ipRouteMask)
Indicates the mask to be logical-ANDed with the destination address before being compared to the value in the
ipRouteDest field. For those systems that do not support arbitrary subnet masks, an agent constructs the value
of the ipRouteMask by determining whether the value of the corresponding ipRouteDest field belongs to a
Class A, B, or C network, and then using the appropriate mask from table 3.
Gateway (RouteGateway)
Specifies the IP address to which the packets should be forwarded.
Cost (RouteCost)
This is the cost of the route as defined by RIP standards. Cost is sometimes considered to be number of hops.
A cost of 16 is considered to be infinite. A cost can be given to user-entered routes so their preference in rela-
tion to learned routes can be calculated.
Interface (ipRouteIfIndex)
The index value that identifies the local interface through which the next hop of this route should be reached.
The interface identified by a particular value of this index is the same interface as identified by the same value
of ifIndex.
State (RouteState)
•
invalid(1)—This setting deletes the route.
•
active(2)—A valid route is in use.
•
nopath(3)—No route is available to the specified gateway. The gateway is not known to local networks.
•
agedout(4)—Invalid route (soon to be removed).
•
costly(5)—A valid route, but not in use because of it’s higher cost.
Table 3. Masks
Mask
Network
255.0.0.0
class-A
255.255.0.0
class-B
255.255.255.0
class-C
Содержание LRA 2900
Страница 29: ...Contents Model LRA2900A RAS Administrators Reference Guide 29 ...
Страница 33: ...About this guide Model LRA2900A RAS Administrators Reference Guide 33 ...
Страница 37: ...1 Introduction Model LRA2900A RAS Administrators Reference Guide 37 Saving HTTP HTML Object Changes ...
Страница 42: ...42 Chapter 3 Import Export Chapter contents Introduction 43 Export Configuration 43 Import Configuration 45 ...
Страница 63: ...5 Authentication Model LRA2900A RAS Administrators Reference Guide 63 Modify Static User ...
Страница 72: ...72 Model LRA2900A RAS Administrators Reference Guide 7 Dial In ...
Страница 109: ...7 Dial In Model LRA2900A RAS Administrators Reference Guide 109 Dial In User Statistics window ...
Страница 125: ...8 Dial Out Model LRA2900A RAS Administrators Reference Guide 125 An example demonstrating how Dial Out is used ...
Страница 155: ...12 Filter IP Model LRA2900A RAS Administrators Reference Guide 155 An example of using a filter ...
Страница 201: ...16 MFR Version 2 Model LRA2900A RAS Administrators Reference Guide 201 ...
Страница 211: ...16 MFR Version 2 Model LRA2900A RAS Administrators Reference Guide 211 MFR Version 2 Modify ...
Страница 268: ...268 Chapter 22 About Chapter contents Introduction 269 Black Box contact information 269 ...
Страница 273: ...23 License Model LRA2900A RAS Administrators Reference Guide 273 End User License Agreement ...
Страница 278: ...278 Appendix B MIB trees Chapter contents Model LRA 2900 MIB Tree Structure 279 ...