From Bugzilla Helper: User-Agent: Mozilla/4.77 [en] (X11; U; Linux 2.4.2-SGI_XFS_1.0 i686; Nav) Description of problem: redhat version of rp-pppoe-2.6-5 does not support MSS Clamp (act is 3.0-1 and does) This should eleminate the need to adjust mtu settings in a lan when acting as a router. How reproducible: Always Steps to Reproduce: 1.have a linux-pc act as router that does masq (via ipchains) 2.have the mtu of eth0 and eth1 set to 1500 (which is standard) 3.disable proxy on a client behind that router 4. visit e.g. http://www.heise.de/ (this depends on the web-page, but heise definitely does not work) Actual Results: does not show the web-page worked fine when using squid on the router (so I think it has to do with the need to fragment large packets) web-page can be seen from the router Expected Results: should work don't you think Additional info: see http://www.roaringpenguin.com/pppoe/ last three lines in section recquierements The latest version of the PPPoE client is 3.0. It includes nice shell scripts for managing the connection as well as more manual pages. It also includes the "MSS Clamp" feature which eliminates the need to adjust MTU settings on LAN hosts. If you are using a version earlier than 2.5, you are strongly encouraged to upgrade. 2.5 and later fix a denial-of-service vulnerability found in earlier versions.
just realised that this router is NOT running redhat but debian :-( sorry for filling in this report