[coLinux-users] Strange SLIRP behaviour

[Marek J. <Mar...@ie...>]

Hi everyone,

I had coLinux successfully set up at home using SLIRP but at a different
site I am having problems:

I can DNS out but my TCP SYN packets are reseted and do not leave my
machiene.


In my coLinux configuration file I have set up eth0=slirp
In my Linux system I obtained network settings via dhcp and verified
them against the static configuration in the manual. Then I try to wget
a website via: wget http://heise.de

With wireshark I analysed the packets going out on eth0:
There I first have the DNS request and reply going from my 10.0.2.15
address to 10.0.2.3 and back.
Then the TCP SYN packets go out to the PROXY set up for HTTP ( 10.0.2.15
to the PROXY address) but an RST comes back ( PROXY -> 10.0.2.15).

On the windows side I have wireshark running on my Physical Ethernet
Adapter. There the DNS request goes out and comes back ( WindowsIP ->
DNS) and ( DNS -> WindowsIP).
But then there is no TCP Syn Packet leaving my Windows Host.

The Windows Firewall is disabled globally. I tried to run the colinux debugger but it does not show the actual packets
sent/received just memory addresses. Is there a way to see what colinux receives and resends in the debugger ?


Any ideas ?

Marek



-- 
Marek Jawurek,
Fraunhofer IESE, Security and Safety
Fraunhofer-Platz 1, 67663 Kaiserslautern, Germany
Phone/Fax: +49 631 6800-2132/-92132
mailto:mar...@ie...
http://www.iese.fraunhofer.de