From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050922 Fedora/1.0.7-1.1.fc4 Firefox/1.0.7 Description of problem: Sorry about my poor english. Problem with IPTALBLES and Kernel: 2.6.14-1.1637_FC4 with INBOUND MS VPN (IP Port47 TCP Port 1723 UDP Port 500 UDP Port 1701) OUTBOUND MS VPN is OK ! with kernel-2.6.14-1.1637_FC4 The Problem is only at INBOUND connections not with OUTBOUND connections. We have a Firewall with Fedora Core 4 and iptables. Behind the Firewall (NAT and MASQUERADE) is a Microsoft VPN Server. IPFORWARD is activ ( cat /proc/sys/net/ipv4/ip_forward 1 ) If we use the Kernel 2.6.13-1.1532_FC4, all is working fine. When we use the Kernel 2.6.14-1.1637_FC4 the VPN Auth. is not OK. It STOPs at the User & Password check. We use the SAME IPTABLES Policy !!! Can you please tell me, what information do you need to fix this Problem in the next Kernel Release for Fedora Core 4 ??? We have a Problem with this Kernel: 2.6.14-1.1637_FC4 too. Core DUMPs if stop / reload iptables. Unloading iptables modules: FAILED This Problem is not with Kernel: 2.6.13-1.1532_FC4 and the Kernel Version below. Version-Release number of selected component (if applicable): iptalbes-1.3.0-2, kernel-2.6.14-1.1637_FC4 How reproducible: Always Steps to Reproduce: 1.Boot Kernel 2.6.14-1.1637_FC4 2.load iptables policy 3.try to make a Microsoft VPN-Connect (INBOUND) behind the Firewall (NAT) Actual Results: If we use kernel-2.6.14-1.1637_FC4, the MS VPN-Connect is STOP at AUTH: User and Password No Entry on the Windows Server Logfiles. With kernel-kernel-2.6.13-1.1532_FC4 or below all is OK. (VPN Login and LOGFile Entrys on the Windows Server) Additional info: Additional Information: /etc/init.d/iptables stop Flushing firewall rules: [ OK ] Setting chains to policy ACCEPT: filter nat [ OK ] Unloading iptables modules: [ FAILED ]
iptables is the userland configuration tool, but this is a kernel netfilter problem. Assigning to kernel.
please try with the 1644 kernel update that went out today. (If your yum mirror hasn't got it yet, you can also find it at http://people.redhat.com/davej/kernels/Fedora/FC4/)
Thanks a lot ! with: Kernel 2.6.14-1.1644_FC4 #1 Sun Nov 27 03:25:11 the Problem is FIXED Dennis