---------- Original Message ---------------------------------- From: "RobertH" <roberth at abbacomm.net> Reply-To: CentOS mailing list <centos at centos.org> Date: Tue, 9 Sep 2008 12:32:33 -0700 >> >> I got my information about the MTU setting from doing google searches and >> the message boards on broadband reports as well as doing the tweak test on >> broad band reports. >> >> > >It appears you are on Comtrash where everything is CoMtRaSHtIc. > >Good for you. Dance a jig. > >Stop beating the MTU horse to death and get busy finding out how to best >connect to the CPE devices. > >Google that stuff. > >First, when testing, disable (admin down) the internal network on the second >nic > >Also, check to see what specific nics you have an if any recent issues with >kernels and such and any updates. > >Google that too. > >Then Focus on the internet transit/transport infrastructure. > >Find out best way to interface with the cable modem CPE infrastructure. > >Meaning what speed and duplex. > >Trial and error. > >You will get there... > >Some nics need to be played with and dealt with in terms of kernel and other >things like disable ipv6 in modprobe.conf and dhcp... > >You might be better off having an intermediate device between you and the >cable modem if your nics don't wanna play nice with the cable modem. > >Last but not least, you can always check stats and see if collisions and >errors on interfaces and more. > >Enjoy > > - rh > >_______________________________________________ >CentOS mailing list >CentOS at centos.org >http://lists.centos.org/mailman/listinfo/centos > 1. Comcrap is not available in my area I am on road runner biz through bright house with 15m down and 2 up and static ip. 2. Already tested without the internal nic running 3. Tried with a router in between and the result is the same. 4. I do agree about the negotiation aspect, which I'm looking into as well. 5. Don't notice any collisions or errors on ifconfig. ________________________________________________________________ Sent via the WebMail system at mail.dsli.com