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I tried to figure out how to start VMWare on Linux so that the guest OS has transparent network access using NAT. Here is a way:
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#!/bin/bash
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#
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# This scripts sets the forwarding rules for VMWare
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#
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# We assume that we have VMWare set up with NAT and
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# have given the following IP addresses:
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#
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# Physical Network Adapter: PN=192.168.1.xxx
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# VMWare Network Adapter: VN=192.168.2.xxx
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#
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# We do not know exactly which Interface and which
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# IP address we have for the physical network - so
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# we have to find these out first among eth0, eth1
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#
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PN=192.168.1
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VN=192.168.2
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IP=`ifconfig | grep -e "inet.\+:$PN.[^d]*\S" | sed "s/.*\($PN.*\?\) Bcast.*/\1/1"`
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IF=`for i in eth0 eth1 ; do ifconfig $i | grep $IP >/dev/null && echo $i ; done`
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sudo /sbin/iptables --flush
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sudo /sbin/iptables -t nat --flush
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sudo /sbin/iptables -t nat -P PREROUTING ACCEPT
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sudo /sbin/iptables -t nat -P POSTROUTING ACCEPT
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sudo /sbin/iptables -P FORWARD ACCEPT
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sudo /sbin/iptables -P OUTPUT ACCEPT
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sudo /sbin/iptables -P INPUT ACCEPT
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sudo /sbin/iptables -t nat -A POSTROUTING -s $VN.0/24 -o $IF -j SNAT --to $IP
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echo 1 | sudo tee /proc/sys/net/ipv4/ip_forward >/dev/null
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/usr/bin/vmware
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