US Robotics USR2410 Manual de usuario descargar pdf (Pagina 68)

from_host :: FromHost(grid0, me/24) ->arp_demux ->ARPResponder(0.0.0.0/0 1:1:1:1:1:1)-

>to_host;

//from_host for the non-grid device

from_host_noGrid :: FromHost(intern0, intern/24) ->arp_demux;

//non-grid device

intern_dev :: GatewayDevice(eth0);

// ARP MACHINERY for non-grid device

intern_arp_class :: Classifier(12/0806 20/0001, 12/0806 20/0002, 12/0800, -);

intern_arpq :: ARPQuerier(intern);

intern_dev -> intern_arp_class;

intern_arp_class[0] -> ARPResponder(intern) //respond to ARP queries

-> intern_dev;

intern_arp_class[1] -> [1]intern_arpq;

//packets from output 2 are data packets (non-ARP). They are dealt with below.

intern_arp_class[3] -> Discard; //discard unrecognized packets

// REWRITERS for NAT

IPRewriterPatterns(to_world_pat me 50000-65535 - -,

to_server_pat intern 50000-65535 - -);

rewriter :: IPRewriter(// internal traffic to outside world

pattern to_world_pat 0 1,

// external traffic from mesh grid

pattern to_server_pat 1 0,

//pass through packets from client

//to check for previous routes

pass 2,

//pass through packets from mesh grid

//to check for previous routes

pass 3

);

// Rewriting rules for ICMP packets

irw :: ICMPPingRewriter(me, -);

// Rewriting rules for ICMP error packets

ierw :: ICMPRewriter(rewriter irw);

//output path for packets destined for the internal network

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US Robotics USR2410 Manual de usuario Pagina 68