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25.  Mobile IP Files and Commands (Reference) Mobile IP Configuration File Sample Configuration Files Example-mipagent.conf.fa-sample File  Previous   Contents   Next 
   
 

Example-mipagent.conf.ha-sample File

The following listing shows the sections, labels, and values that are contained in the mipagent.conf.ha-sample file. "Configuration File Sections and Labels" describes the syntax, sections, labels, and values. The mipagent.conf.ha-sample file shows a configuration that provides only home agent functionality. Otherwise, this file is the same as the mipagent.conf-sample file.

[General]
   Version = 1.0    # version number for the configuration file. (required)
   
[Advertisements hme0]
   HomeAgent = yes
   ForeignAgent = no
   PrefixFlags = yes
   AdvertiseOnBcast = yes
   RegLifetime = 200
   AdvLifetime = 200
   AdvFrequency = 5
   ReverseTunnel = yes
   ReverseTunnelRequired = no

[GlobalSecurityParameters]
   MaxClockSkew = 300
   HA-FAauth = yes
   MN-FAauth = yes
   Challenge = no
   KeyDistribution = files

[Pool 1]
   BaseAddress = 10.68.30.7
   Size = 4

[SPI 257]
   ReplayMethod = none
   Key = 11111111111111111111111111111111

[SPI 258]
   ReplayMethod = none
   Key = 15111111111111111111111111111111

[Address 10.1.1.1]
   Type = node
   SPI = 258

[Address mobilenode@sun.com]
   Type = node
   SPI = 257
   Pool = 1

[Address Node-Default]
   Type = node
   SPI = 258
   Pool = 1

[Address 10.68.30.36]
    Type = agent    
    SPI = 257    
    IPsecRequest = apply {auth_algs md5 sa shared} 
    IPsecReply = permit {auth_algs md5}  
    IPsecTunnel = apply {encr_algs 3des sa shared}

Configuration File Sections and Labels

The Mobile IP configuration file contains the following sections:

  • General (Required)

  • Advertisements (Required)

  • GlobalSecurityParameters (Optional)

  • Pool (Optional)

  • SPI (Optional)

  • Address (Optional)

The General and GlobalSecurityParameters sections contain information relevant to the operation of the Mobile IP agent and can appear only once in the configuration file.

General Section

The General section contains only one label: the version number of the configuration file. The General section has the following syntax:

[General]
     Version = 1.0

Advertisements Section

The Advertisements section contains the HomeAgent and ForeignAgent labels, as well as other labels. You must include a different Advertisements section for each interface on the local host that provides Mobile IP services. The Advertisements section has the following syntax:

[Advertisements Interface-name]
     HomeAgent = <yes/no>
     ForeignAgent = <yes/no>
     .
     .

Typically, your system has a single interface (le0, hme0, and so on) and supports both home agent and foreign agent operations. If this is the situation for the example hme0, then the yes value is assigned to both the HomeAgent and ForeignAgent labels as follows:

[Advertisements hme0]
     HomeAgent = yes
     ForeignAgent = yes
     .
     .

For advertisement over dynamic interfaces, use '*' for the device id part. For example, Interface-name ppp* actually implies all ppp interfaces that are configured after mipagent has been started. All the attributes in the advertisement section of a dynamic interface type remain the same.

The following table describes the labels and values that you can use in the Advertisements section.

Table 25-1 Advertisements Section Labels and Values

Label

Value

Description

HomeAgent

yes or no

Determines if mipagent provides home agent functionality.

ForeignAgent

yes or no

Determines if mipagent provides foreign agent functionality.

PrefixFlags

yes or no

Specifies if advertisements include the optional prefix-length extension.

AdvertiseOnBcast

yes or no

If yes, advertisements are sent on 255.255.255.255, rather than 224.0.0.1.

RegLifetime

n

The maximum lifetime value that is accepted in registration requests, in seconds.

AdvLifetime

n

The maximum length of time that the advertisement is considered valid in the absence of further advertisements, in seconds.

AdvFrequency

n

Time between two consecutive advertisements, in seconds.

ReverseTunnel

yes or no FA or HA or both

Determines if mipagent provides reverse-tunnel functionality.

The value yes means that both the foreign agent and home agent support reverse tunneling. The value no means that the interface does not support reverse tunneling.

The value FA means that the foreign agent supports reverse tunneling. The value HA means that the home agent supports reverse tunneling. The value both means that both the foreign agent and home agent support reverse tunneling.

ReverseTunnelRequired

yes or no

Determines if mipagent requires reverse tunnel functionality. Consequently, determines if a mobile node must request a reverse tunnel during registration.

The value yes means that both the foreign agent and home agent require a reverse tunnel. The value no means that the interface does not require a reverse tunnel.

The value FA means that the foreign agent requires a reverse tunnel. The value HA means that the home agent requires a reverse tunnel.

AdvInitCount

n

Determines initial number of unsolicited advertisements. The default value is 1. This value is meaningful only if AdvLimitUnsolicited is yes.

AdvLimitUnsolicited

yes or no

Enables or disables a limited number of unsolicited advertisements over the mobility interface.

 		 
 
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