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- add more detail on the ping problems I'm seeing

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Bryce Denney 2002-03-09 01:33:46 +00:00
parent b1835f1dc3
commit aac59e68ae
1 changed files with 27 additions and 5 deletions
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32
bochs/iodev/eth_tap.cc
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: eth_tap.cc,v 1.3 2002-03-09 01:23:21 bdenney Exp $
// $Id: eth_tap.cc,v 1.4 2002-03-09 01:33:46 bdenney Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2001 MandrakeSoft S.A.
@ -50,11 +50,33 @@
// # route add default gw 10.0.0.1
// Now you should be able to ping from guest OS to your host machine, if
// you give its IP number. I'm still having trouble with pings from the
// host machine to the guest, so something is still not right. But it's
// really close to working!
// host machine to the guest, so something is still not right. Symptoms: I
// ping from the host to the guest's IP address 10.0.0.2. With tcpdump I can
// see the ping going to Bochs, and then the ping reply coming from Bochs.
// But the ping program itself does not see the responses....well every
// once in a while it does, like 1 in 60 pings.
//
// By setting up packet forwarding (with masquerading) on the host, you should
// be able to get Bochs talking to anyone on the internet.
// host$ ping 10.0.0.2
// PING 10.0.0.2 (10.0.0.2) from 10.0.0.1 : 56(84) bytes of data.
//
// Netstat output:
// 20:29:59.018776 fe:fd:0:0:0:0 fe:fd:0:0:0:1 0800 98: 10.0.0.1 > 10.0.0.2: icmp: echo request
// 4500 0054 2800 0000 4001 3ea7 0a00 0001
// 0a00 0002 0800 09d3 a53e 0400 9765 893c
// 3949 0000 0809 0a0b 0c0d 0e0f 1011 1213
// 1415 1617 1819
// 20:29:59.023017 fe:fd:0:0:0:1 fe:fd:0:0:0:0 0800 98: 10.0.0.2 > 10.0.0.1: icmp: echo reply
// 4500 0054 004a 0000 4001 665d 0a00 0002
// 0a00 0001 0000 11d3 a53e 0400 9765 893c
// 3949 0000 0809 0a0b 0c0d 0e0f 1011 1213
// 1415 1617 1819
//
// I suspect it may be related to the fact that ping 10.0.0.1 from the
// host also doesn't work. Why wouldn't the host respond to its own IP
// address on the tap0 device?
//
// Theoretically, if you set up packet forwarding (with masquerading) on the
// host, you should be able to get Bochs talking to anyone on the internet.
//
#include "bochs.h"