On Thu, Sep 09, 2004 at 09:55:40AM +0300, haim [howard] roman wrote: > The addresses used below are fictictious. But we really have a class > B address that is subnetted into class C subnets. > > My station's main IP is 130.130.1.66 (subnet 1). That interface is always up. > > Sometimes, I bring up the 2nd interface at 130.130.2.66 (subnet 2). I > also create routing table entries so packets to some subnets go via > the subnet 2 interface. > > I suspect that when that happens, sometimes the packet goes out the > subnet 2 interface, but the source address in the IP packet is the > subnet 1 address. > > Any suggestions for how to check that? Someone suggested to me > tcpdump. Is there a better and/or easier way?
I do not know, but tcpdump is quite easy. You can use ethereal, which is graphical and maybe more comfortable. > > More importantly, if I'm correct, how do I change it? I running > > Distribution: Red Hat Enterprise Linux WS release 3 > (Taroon Update 2) > > Linux Kernel: 2.4.21-15.EL #1 You need to change this per application, as far as I know. E.g. the option '-b' in openssh. -- Didi ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
