[coLinux-devel] Two networking issues

[Robert P. <rob...@ho...>]

Hi folks,

coLinux is great. I am able to set up and run Fedora Core 1 with the 0.6.0
build on Windows 2000. However, I run into 2 issues.

First, I cannot use DHCP with FC1. I get the same error as described in
http://www.colinux.org/wiki/index.php/coLinuxIAQ#A1. Since there is no pump
binary package for FC1, I haven't tried pump to see if will resolve the
issue. FC1 uses dhclient for DHCP and I am not how to set it up to use pump.

Second, using static IP, I cannot make a TCP connection from the W2k host to
coLinux or vice versa. ping works but I got duplicate replies if I ping the
W2k host (rpang-pc2) from coLinux:

[rpang@colinux rpang]$ ping rpang-pc2
PING rpang-pc2 (130.35.168.159) 56(84) bytes of data.
64 bytes from rpang-pc2 (130.35.168.159): icmp_seq=0 ttl=128 time=4.96 ms
64 bytes from rpang-pc2 (130.35.168.159): icmp_seq=0 ttl=128 time=6.25 ms
(DUP!)
64 bytes from rpang-pc2 (130.35.168.159): icmp_seq=1 ttl=128 time=1.11 ms
64 bytes from rpang-pc2 (130.35.168.159): icmp_seq=1 ttl=128 time=1.91 ms
(DUP!)
64 bytes from rpang-pc2 (130.35.168.159): icmp_seq=2 ttl=128 time=1.13 ms
64 bytes from rpang-pc2 (130.35.168.159): icmp_seq=2 ttl=128 time=1.72 ms
(DUP!)
..

ping from W2k to coLinux seems to be okay though:

C:\Documents and Settings\rpang>ping lvbcheng-pc

Pinging lvbcheng-pc.us.oracle.com [130.35.168.148] with 32 bytes of data:

Reply from 130.35.168.148: bytes=32 time=30ms TTL=64
Reply from 130.35.168.148: bytes=32 time=10ms TTL=64
Reply from 130.35.168.148: bytes=32 time<10ms TTL=64
Reply from 130.35.168.148: bytes=32 time=10ms TTL=64

Ping statistics for 130.35.168.148:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum =  30ms, Average =  12ms

Because of this problem, I cannot make X connection from coLinux to my
cygwin/XFree86 running on my W2k host. Neither can I ssh from my W2k host
back to coLinux. TCP connection to and from another machine on the network
with coLinux is fine though.

Here is my coLinux network setup:

[rpang@colinux rpang]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:43:4F:4E:45:30
          inet addr:130.35.168.148  Bcast:130.35.171.255  Mask:255.255.252.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1523574 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4726 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:104822082 (99.9 Mb)  TX bytes:3234903 (3.0 Mb)
          Interrupt:2

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

My W2k network setup:

Windows 2000 IP Configuration

        Host Name . . . . . . . . . . . . : rpang-pc2
        Node Type . . . . . . . . . . . . : Hybrid
        IP Routing Enabled. . . . . . . . : No
        WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

        Description . . . . . . . . . . . : 3Com 3C918 Integrated Fast
Ethernet
Controller (3C905B-TX Compatible)
        Physical Address. . . . . . . . . : 00-C0-4F-5E-C2-DA
        DHCP Enabled. . . . . . . . . . . : No
        IP Address. . . . . . . . . . . . : 130.35.168.159
        Subnet Mask . . . . . . . . . . . : 255.255.252.0
        Default Gateway . . . . . . . . . : 130.35.168.1
        DNS Servers . . . . . . . . . . . : 130.35.249.41
                                            138.2.202.15
        Primary WINS Server . . . . . . . : 138.2.202.14
        Secondary WINS Server . . . . . . : 130.35.62.34

And my default.colinux.xml:

<?xml version="1.0" encoding="UTF-8"?>
<colinux>
    <block_device index="0" path="\DosDevices\e:\fedora_root"
enabled="true">
    </block_device>
    <block_device index="1" path="\DosDevices\e:\colinux_swap"
enabled="true">
    </block_device>
    <bootparams>ro root=/dev/cobd0</bootparams>
    <image path="vmlinux"></image>
    <memory size="64"></memory>
    <network index="0" type="bridged" name="3Com 3C918 Integrated Fast
Ethernet Controller (3C905B-TX Compatible)"></network>
</colinux>

BTW, I am using the bridged network. I failed to setup NAT with W2k ICS.
Enabling W2k ICS always results with an error. It turns out that ICS uses
DHCP implicitly and there is another DHCP server running in my network so
ICS cannot be used (see the first common problem under
http://is-it-true.org/nt/nt2000/utips/utips11.shtml).

Any take on these two issues?

Thanks.

Rob