US Robotics USR2410 Instrukcja Użytkownika Pobierz pdf (Strona 71)

ip_demux [2] -> to_host_encap; //packets destined for the internal address

ip_demux [3] -> IPPrint(ip_demux[3]->)->ip_to_intern; //packets destined for the

internal net

// forward packet for the gateway

ip_demux [4] -> GetIPAddress(16) ->

CheckIPHeader ->

GridEncap(me:eth, me:ip) ->

to_gateway ->

dec_ip_ttl;

grid_data_demux [0] -> Strip(82) -> icmp_packet_classifier :: IPClassifier (icmp type

echo-reply,icmp type echo, proto icmp, -); //strip the grid header. Determine if this is

an ICMP packet or a TCP/UDP packet

icmp_packet_classifier[0] -> [1]irw; // icmp ping reply

icmp_packet_classifier[1] -> to_host_encap; //icmp ping should go to the kernel

icmp_packet_classifier[2] -> ierw; // other icmp

icmp_packet_classifier[3] -> [3]rewriter; // receive packet from net for us or

internal network.

// forward packet from grid mesh net for someone else

grid_data_demux [1] -> dec_ip_ttl;

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US Robotics USR2410 Instrukcja Użytkownika Strona 71