Client side problems with router

Client side problems with router

Post by mrcode1.. » Wed, 20 Sep 2000 04:00:00

I am going nuts with this problem.  I am on a
heterogeneous network of Windows 98, NT, 2K, and
Solaris boxes running though a Cisco 2600 router
to a T1.  I recently installed Red Hat 6.2 on my
box since Linux is my preferred OS for
development.  My box is a Dell OptiPlex with a
supported 3COM NIC.

Basically the problem is that when the router's
IP is configured as the default gateway on my box
I have horrible network performance: 70%+ packet
loss on pings, horribly slow traceroutes, and
Netscape and other TCP apps seemed to be slowed
down too (though they do work.)  If I remove the
router's IP as the default gateway (hence cutting
myself off from the internet), I can ping the
local network fine and all looks good.  When I
add it back even pinging locally is affected as
described above.

For debugging purposes I even set up my box on a
completely different subnet running over another
router and T1 and had the same exact problem.  On
my same box Win2K is fine, therefore I have
narrowed down the problem to either be Linux or
some strange router configuration that only
affects Linux.

Do any of you network gurus have any suggestions
for this?  I really want to use Linux on my box
here, but with bad networking I only see trouble
in the future.

Thanks a lot,
Ryan Leavengood

Sent via
Before you buy.


1. IPCOP OPENVPN side by side with router VPN

I have the following network problem:  with NETOPIA ROUTER -->
Internet Internet <-- NETOPIA ROUTER subnet

multiple locations, not just the Everything works great.

Recently I have been experimenting with OPENVPN on the IPCOP distro as
a way to let certain people work from home.

The OPENVPN box is with it's own external IP for my
external test users. My problem is that OPENVPN doesn't seem to give
enough control over settings. It would be really great if I could tell
it to use,4,5,6,7 as it's address pool for external clients
sort of like mask However, the clients then literally
get visibility to that little subnet and nothing else.

Alternately, if I use a completely different subnet like for OpenVPN they get visibility to as
well as

However, I am at a loss of how to get my two netopia routers to then
route traffic (the OpenVPN's virtual subnet) to
which would the the IPCOP's real physical IP address so that the remote
users from 10.0.10.X can get to 172.21.2.X.


2. upgrading from 3.0 to 3.1

3. server-side map 2 client-side map utility?

4. seeking disk & NFS benchmark tools

5. server side imagemap vs client side

6. NAS (Network Audio System) and audio support in general

7. Problem DSL Router <-> Firewall Router <-> Clients

8. food frying/snack specialist required

9. Problem with netgear print server on wrong side of Linux router

10. samba problem on windows client side

11. NIS problem from the client side

12. Possible to avoid a router on 'my side'??

13. sendmail on RFC1918 network side of router's NAT