I am trying to get cross platform networking to work with VxSim. I
haven't gotten very far. I have read many of the posts, but most are
for Win 2k or NT, and I'm running XP with Tornado 2.2.1 and VxWorks
5.5. My problem is that I am unable to ping from my target shell to my
host's IP address. I am also unable to ping the ULIP device,
90.0.0.254. Here are the networking details

ULIP IP: 90.0.0.254
Host IP: 192.168.21.39
network router: 192.168.21.200
target IP: 90.0.0.1

Here is the routeShow results from the shell:

************************************************** ************************************************** ***********
ROUTE NET TABLE
Destination Gateway Flags Refcnt Use Interface
--------------------------------------------------------------------
0.0.0.0 90.0.0.1 0x103 2 0 nt0
--------------------------------------------------------------------

ROUTE HOST TABLE
Destination Gateway Flags Refcnt Use Interface
--------------------------------------------------------------------
90.0.0.254 90.0.0.1 0x8007 1 32 nt0
127.0.0.1 127.0.0.1 0x5 1 0 lo0
--------------------------------------------------------------------
************************************************** ************************************************** ***********

Here is the route print from DOS shell:

************************************************** ************************************************** ***********
================================================== =========================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 12 3f 66 73 ef ...... Broadcom NetXtreme 57xx Gigabit
Controller - Packet Scheduler Miniport
0x3 ...00 00 00 00 00 fe ...... WindRiver ULIP - Packet Scheduler
Miniport
================================================== =========================
================================================== =========================
Active Routes:
Network Destination Netmask Gateway Interface
Metric
0.0.0.0 0.0.0.0 192.168.21.200 192.168.21.39
20
90.0.0.0 255.255.255.0 90.0.0.254 90.0.0.254
30
90.0.0.254 255.255.255.255 127.0.0.1 127.0.0.1
30
90.255.255.255 255.255.255.255 90.0.0.254 90.0.0.254
30
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.21.0 255.255.255.0 192.168.21.39 192.168.21.39
20
192.168.21.39 255.255.255.255 127.0.0.1 127.0.0.1
20
192.168.21.255 255.255.255.255 192.168.21.39 192.168.21.39
20
224.0.0.0 240.0.0.0 90.0.0.254 90.0.0.254
30
224.0.0.0 240.0.0.0 192.168.21.39 192.168.21.39
20
255.255.255.255 255.255.255.255 90.0.0.254 90.0.0.254 1
255.255.255.255 255.255.255.255 192.168.21.39 192.168.21.39 1
Default Gateway: 192.168.21.200
================================================== ======
Persistent Routes:
None
************************************************** ************************************************** ***********

To me it seems that the gateway for "0.0.0.0" should be "90.0.0.254" or
"192.168.21.39", although I'm not sure.

Note: I have been able to succesfully ftp using the DOS ftp command and
transfer files to the /ram0 directory of my target. This leads me to
believe there is bidirectional data transfer between the host and
target. However, I can ping FROM DOS to the target, but the converse is
not working.

Any suggestions will be helpful.

Thanks,
Walter Shirey