Yes, I really need two physical links to do my job. Also, when I connect two eth0 and eth1 directly, TEQL does send half of the packets to each link. It only doesn't work when I put a gateway between eth1. It seems that the way TEQL works is that it tries to put packets to both interfaces. However, if one interface is not working, then it just sends all packets to the other. When I "ping -I teql0 IP_of_teql0_of_the other_end", eth1 broadcasts ARP for the MAC address of the destination, and because the IP is in another subnet, it can't get any answer, although I have specify the gateway for that IP. So TEQL sends all packets to eth0. Don't know what's wrong. -Ji -----Original Message----- From: lartc-bounces@xxxxxxxxxxxxxxx [mailto:lartc-bounces@xxxxxxxxxxxxxxx] On Behalf Of Taylor, Grant Sent: Wednesday, June 22, 2005 3:01 PM To: lartc@xxxxxxxxxxxxxxx Subject: Re: Question: TEQL via gateway I think this has to do with an age old issue (problem or feature, you decide). Linux (and most other unicies and other OSs in general) will pick the first interface on a subnet to use as the source interface to send the traffic out. I think, this is more akin to what bonding is designed to answer. I question are you wanting to really have the 2nd leg of the teql link be via a different path or were you just doing that to test to see if you were really sending traffic out both interfaces? If you can have a direct cross over cable on both interfaces and you are wanting more aggregate bandwidth take a look at bonding, I think it will serve you better. Disclaimer, I have not worked with teql or bonding my self directly and this is based on what reading I have done, that being more on bonding than teql. Grant. . . . Li, Ji wrote: > Yesterday I posted a question, but I guess too much detail is provided > that no one would bother to read, so I rephrase the question and > hopefully some one may be willing to read. Sorry to spam. > > I am using TEQL on two computers, each with two network interfaces. > The two eth0 are connected directly, and the two eth1 are connected > via a gateway (a linux machine). The problem is that when I send > packets through teql0 to the other machine (ping -I teql0), the > packets can't go through eth1 and all packets go via eth0. But I can > send packets via > eth1 directly (ping -I eth1). What's wrong? > > P.S. I put eth1 and teql0 on one computer, and the gateway interface > on the same side into one subnet. I only found TEQL configuration for > two direct links. My routing tables are attached below. > > Thanks a lot, > -Ji _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
