Bulent, Thank you for the reply. I am afraid you may have misunderstood this problem. Allow me to be more clear:
192.168.0.1 --------------------- 192.168.0.150 - Host A - 128.59.39.3 | (dual homed server) | | | | | 128.59.39.2 router A router C ---------------------------- Internet | 192.168.1.1 | | T1 | | 192.168.1.2 | router B | 192.168.2.1 The problem happens on Host A. Host A is a WebServer with 2 interfaces: a public (which goes out to the internet) and a private (which talks to the database). The private interface has IP 192.168.0.150 and default GW 192.168.0.1. The public has ip 128.59.39.3 and default GW 128.59.39.2. Everything works fine if I leave the private interface's default GW blank. If I put Router C's address as the private interface's default gateway, after some time I cannot ping anywhere from Host A, even though I can ping it from the outside world. I need to have the private interface configured with 192.168.0.1 as the default GW because remote users need to be able to connect to that server via the back-end T1. Any light would be greatly appreciated. Thanks, -H ----- Original Message ----- From: "B|lent ^ahin" To: Sent: Thursday, May 09, 2002 3:17 AM Subject: RE: dual-homed hosts problems [7:43677] > When configuring ethernet interfaces on MS environment, you have three blank > spaces to fill: IP_address, Subnet_mask and Default_gateway. So the people > start to think every ethernet interface as a router: "This interface will > route IP packets to the other interface, so the default gateway of the first > interface should be same as the IP address of the second interface.", but > there is one router on the PC: CPU. Try to configure only one default > gateway. You can use the command "route print" to see what happens when you > configure two or more default gateways. > > Bulent > > > -----Original Message----- > From: Henrique Duarte [mailto:[EMAIL PROTECTED]] > Sent: Thursday, May 09, 2002 12:39 AM > To: [EMAIL PROTECTED] > Subject: dual-homed hosts problems [7:43677] > > > Hello All, > > I am working on some dual homed servers at a co-location where there is a > public and private interface on each. The public interfaces attach to the > internet via a router while the private ones are on its own separate private > subnet. The private subnet is attached to another router, which provides > remote users access to the private network via a T1 line. I am encountering > the following issue. When I set the private interfaces' default gateway to > the private interface's router address, it works fine for about 10 minutes > or so, but after that the server cannot ping and/or access the internet, > even though it is set with the public NIC to be the primary one. However, as > soon as I take the default gateway out of the private interface NIC it works > fine and is able to ping the outside world. Does anyone have any ideas why > this is happening and/or how to fix it? The servers are running Windows 2000 > Server and the T1 router is a Cisco 1601. > > Thanks, > > -Henrique Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=43788&t=43677 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]