Date: Tue, 31 Mar 1998 00:27:09 +1000 (EST) From: Carey Nairn <cpn@dpac.tas.gov.au> To: questions@FreeBSD.ORG Subject: network performance problems with dual-homed host Message-ID: <Pine.BSF.3.96.980331000212.1071C-100000@jumpgate.cpn.org.au>
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hi guys,
I am having some problems with a dual-homed machine as shown below.
------------
external | | internal
network A -----|fxp0 fxp1|----- network B ----
(internet) | | | | (intranet)
| ------------ |
| |
| ------ |
-----|router|-----
------
Clients on the internal network can get to the machine via a router using
address translation without any problem but ideally we want to access
services such as email and web proxy etc. directly. To do this we have
installed a second ethernet card (fxp1) with an internal IP address.
There is also a second dns server on the internal network which handles
internal dns queries.
When email clients connect to the POP server via the router the address is
translated and all works well, but when connecting via fxp1 (with
appropriate IP addresses etc. configured on the client machine) the
connection seems to take a huge amount of time, before eventually making a
connection. Once connected, normal transactions occur as expected.
Similarly, telnetting to the external network address works almost
instantaneously, but telnetting to the internal address incurs the same
sort of delays. This doesn't seem to be dns related since the same delays
occur whether using FQDNs or IP addresses.
The machine is running 2.2.2-R with 2 intel etherexpress cards.
any thoughts?
cheers,
Carey Nairn
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