From mboxrd@z Thu Jan 1 00:00:00 1970 From: Glynn Clements Subject: Re: Linux Networking problem...please help.. Date: Mon, 14 Jul 2003 03:41:57 +0100 Sender: linux-newbie-owner@vger.kernel.org Message-ID: <16146.6261.303652.963557@cerise.nosuchdomain.co.uk> References: <5.1.1.6.0.20030713233516.00b45080@hotmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <5.1.1.6.0.20030713233516.00b45080@hotmail.com> List-Id: Content-Type: text/plain; charset="us-ascii" To: Sanjay Arora Cc: linux-newbie@vger.kernel.org Sanjay Arora wrote: > Network Scenario: RH 8 Linux Firewall Server using three ethernet cards, > IPs 172.16.0.141 (connected to Cable Ethernet ISP doing NAT), 192.168.200.1 > connected to an ethernet hub, & 192.168.100.1 (presently not being used). > Using a hub two lans are connected to 192.168.200.1, each presently having > one machine each having IP addresses 192.168.200.2 (Windows XP machine, > having Gateway address of 192.168.200.1 in TCP/IP settings) and > 192.168.250.1 (RH8 Linux Server, again having 192.168.200.1 as GW address). Do all the machines have a /16 netmask (255.255.0.0) for the 192.168.x addresses? > 1. When I ftp from 192.168.200.2 (WinXP) to 192.168.250.1 (RH Linux File > Server), the firewall shows an error message saying that WinXP machine is > ignoring redirects to 192.168.250.1 This suggests that the XP machine has the wrong netmask. If it has a /24 netmask (255.255.255.0), it will consider 192.168.250.1 to be in a separate network, and will attempt to send packets via the router. -- Glynn Clements - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs