10-04-2014
Source IP address field in RREP on DSR routing
Hello
I have a question about routing in MANET using
Dynamic Source Routing protocol.
IN RFC4728 (DSR) in section "IP fields" of RREP (
Route Reply) packet we have this:
Quote:
Source Address
Set to the address of the node sending the Route Reply. In the
case of a node sending a reply from its Route Cache (Section
3.3.2) or sending a gratuitous Route Reply (Section 3.4.3),
this address can differ from the address that was the target of
the Route Discovery.
ok.
I read in several books and also in rfc4728 that: when a source node (node that initiate route discovery process) receive a RREP it are not able to understad which node sent that RREP!!
But why?
rfc say that the value of source IP address field of RREP packet is IP address of node that send RREP. and this packet forwarded toward Source node.
My question is why??! why source node can not always understand that which node is sender of RREP?
Please guide me
tnx
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LEARN ABOUT ULTRIX
trigger
trigger(8) System Manager's Manual trigger(8)
Name
trigger - trigger a target node to request a down-line load
Syntax
/etc/trigger node [ options ]
Description
The command triggers the bootstrap mechanism of a target node, causing the target to request a down-line load. Once a target node is trig-
gered, it loads itself in whatever manner its primary loader is programmed to operate. The target node could request a down-line load from
the host that just triggered it or from another adjacent node, or the target node could load itself from its own mass storage device.
The node argument is the name or address of the target node. A node name consists of from one to six alphanumeric characters. For single
networks, a node address consists of a decimal integer (1-1023). For multiple networks, a node address consist of two decimal integers
(n.n), where the first indicates the network number (1-63), and the second indicates the node address (1-1023).
The command requires the identification of the service circuit over which the load is performed, the Ethernet hardware address of the tar-
get node, and the service password needed to gain access to the target. This information is included in the nodes database entry for the
target node. A node entry is defined with the command. For further information, see Alternatively, you can choose not to include a target
node's service password in the nodes database for security reasons. You must therefore specify this value in the command line by using the
-p option.
Options
-p Uses the specified service and password (next arguments) in accessing the target node.
Examples
This command triggers node Bangor to issue a down-line load request:
# /etc/trigger bangor <RET>
See Also
mop_mom(8), addnode(8), load(8), remnode(8), getnode(8), ccr(8)
Guide to Local Area Transport Servers
trigger(8)