Hi, To all folks that use their gentoo linux PC as their internet router/gateway, don't upgrade your kernel to 3.14.1 or 3.14.2.
These versions have a bug related to IP packet forwarding. Internet upload speed for the NAT clients gets extremely slow (in the order of 10Kbps), which download speed remain unaffected. I have spent the entire weekend trying to debug the slow upload issue. I tried different NIC's, different cables, different clients etc, problem was still occurring. Upload/download from the Gentoo linux PC is fine, but any NAT client exhibits the slow upload speed problem. I also suspected that somehow the MSS clamping with iptables doesn't work, that wasn't the problem either, because even with all tables flushed and only IP MASQUERADING in place the problem was there. I finally found a bug report that explains the symtom: http://www.spinics.net/lists/netdev/msg280571.html I then downgraded the kernel to 3.13.11, which fixed the problem. So, all of you guys using your Gentoo PC as your internet gateway, keep 3.13.11 around for a while. -- Timur
