Cisco Cisco Aironet 340 Ethernet Bridges Guia Do Utilizador
Configuring Mobile IP 7 - 5
work. This is useful in cases where Foreign Agents have not yet been
deployed on the foreign network; however, this scheme consumes IP
addresses on that network. Setting this value to on will force mobile
nodes on this network to always register using a Foreign Agent.
deployed on the foreign network; however, this scheme consumes IP
addresses on that network. Setting this value to on will force mobile
nodes on this network to always register using a Foreign Agent.
The HostRedirects
option
indicates whether or not the Foreign Agent
will send an ICMP message to mobile nodes registered through it speci-
fying the Address of an IP Router for the mobile node to use. If set to
“off” (default), the mobile node will always use the Foreign Agent as its
default gateway (router). Setting this value to “on” may improve perfor-
mance while visiting a foreign network; however, there may be connec-
tivity problems which result due to ARP broadcasts from the mobile
node.
fying the Address of an IP Router for the mobile node to use. If set to
“off” (default), the mobile node will always use the Foreign Agent as its
default gateway (router). Setting this value to “on” may improve perfor-
mance while visiting a foreign network; however, there may be connec-
tivity problems which result due to ARP broadcasts from the mobile
node.
Control Agent Advertisements (Advert)
Agents advertise themselves on the LAN so that the mobile nodes can
find them and determine whether they are home or away.
find them and determine whether they are home or away.
The AdvertType value specifies the type of datagram the Mobile Agent
will use when sending out ICMP Agent Advertisements. The RFC 1256
recommendation and the default for the Access Point is to use the All
Hosts Multicast address (224.0.0.1). In testing, it was discovered that
some mobile nodes were not automatically joining this multicast group
and thus were ignoring the agent advertisements. For these mobile nodes
this value should be changed to ‘broadcast,’ which will use the limited
broadcast address (255.255.255.255) for all unsolicited agent advertise-
ments.
will use when sending out ICMP Agent Advertisements. The RFC 1256
recommendation and the default for the Access Point is to use the All
Hosts Multicast address (224.0.0.1). In testing, it was discovered that
some mobile nodes were not automatically joining this multicast group
and thus were ignoring the agent advertisements. For these mobile nodes
this value should be changed to ‘broadcast,’ which will use the limited
broadcast address (255.255.255.255) for all unsolicited agent advertise-
ments.
The AdvertInterval value specifies how frequently (in seconds) the
Mobile Agent will send out an ICMP Router Advertisement multicast.
These advertisements are used by the mobile nodes to locate the Mobile
Mobile Agent will send out an ICMP Router Advertisement multicast.
These advertisements are used by the mobile nodes to locate the Mobile
Configuration Mobile-IP Setup Menu
Option Value Description
1 - AdvertType [ multicast ] - Advertisement type
2 - AdvertInterval [ 5 ] - Advertisement interval
3 - PrefixLen [ off ] - Advertise prefix length extension
4 - AdvertRtrs [ on ] - Advertise routers
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