US Robotics USR2410 Manuel d'utilisateur télécharger pdf (Page 38)

The two passes through the IPRewriter were made to avoid mapping packets destined for the host

router, which would cause the router to reply to itself, and the flow to be lost.

The ICMPPingRewriter output all mapped ICMP echo-requests on output zero. This will either

lead to the ip_demux IPClassifier, or to the Gateway Device Output Processing, depending on

which configuration was used, either the Client Gateway or Internet Gateway. The replies went to

output one, which lead to the next block.

The ICMPRewriter simply output packets that matched a mapping on output zero. These were

sent to the Client Device Output Processing. Packets without a mapping belonged to the host

router, and were sent to the Router Output Processing block.

5.3.4.2.

Mesh Wireless Device Input Processing and Packet

Classification

This section describes the input processing and packet classification done for packets received

from the mesh network. The elements included can be seen in Figure 5-5.

Figure 5-5: Directed Graph of Mesh Wireless Device Input Processing and Packet

Classification Block

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US Robotics USR2410 Manuel d'utilisateur Page 38