Dear maintainers, I have the same exact problem. I have a bridge over an ethernet NIC and an OpenVPN tap interface. Kernel 3.14-2-powerpc works correctly and 3.16-[23]—powerpc do not. The remote openvpn host can reach the bridge interface correctly and thus communicate with the host. However any other access of the remote host that should be forwarded from the openvpn tap interface through the ethernet interface does not work.
I have used netsniff-ng over the remote tap interface, the local tap interface, the local bridge interface, and the local ethernet interface while making a DHCP request from the remote host that should be forwarded to the local network. In all cases the request packet was visible, but not the response. Find below some of the hardware details of my system just in case it helps. ----- /proc/cpuinfo ----- processor : 0 cpu : 7447A, altivec supported clock : 1333.333328MHz revision : 1.5 (pvr 8003 0105) bogomips : 83.20 timebase : 41600661 platform : PowerMac model : PowerMac10,2 machine : PowerMac10,2 motherboard : PowerMac10,2 MacRISC3 Power Macintosh detected as : 287 (Mac mini (Late 2005)) pmac flags : 00000010 L2 cache : 512K unified pmac-generation : NewWorld Memory : 1024 MB ----- /proc/cpuinfo end ----- 08: PCI 2200b.0: 0600 Host bridge [Created at pci.328] Unique ID: 7rcY.vkm17Jxs1m3 SysFS ID: /devices/pci0002:20/0002:20:0b.0 SysFS BusID: 0002:20:0b.0 Hardware Class: bridge Model: "Apple UniNorth 2 Internal PCI" Vendor: pci 0x106b "Apple Inc." Device: pci 0x0036 "UniNorth 2 Internal PCI" Module Alias: "pci:v0000106Bd00000036sv00000000sd00000000bc06sc00i00" Config Status: cfg=new, avail=yes, need=no, active=unknown 11: PCI 2200f.0: 0200 Ethernet controller [Created at pci.328] Unique ID: rBUF.nAQ7Jnazou0 SysFS ID: /devices/pci0002:20/0002:20:0f.0 SysFS BusID: 0002:20:0f.0 Hardware Class: network Model: "Apple UniNorth 2 GMAC (Sun GEM)" Vendor: pci 0x106b "Apple Inc." Device: pci 0x0032 "UniNorth 2 GMAC (Sun GEM)" Revision: 0x80 Driver: "gem" Driver Modules: "sungem" Device File: eth0 Memory Range: 0xf5200000-0xf53fffff (rw,non-prefetchable) Memory Range: 0xf5100000-0xf51fffff (ro,non-prefetchable,disabled) IRQ: 41 (7184 events) HW Address: 00:11:24:*:*:* Link detected: yes Module Alias: "pci:v0000106Bd00000032sv00000000sd00000000bc02sc00i00" Driver Info #0: Driver Status: sungem is active Driver Activation Cmd: "modprobe sungem" Config Status: cfg=new, avail=yes, need=no, active=unknown 12: PCI 11017.0: ff00 Unclassified device [Created at pci.328] Unique ID: tO0B.wjNr0SYqtL5 SysFS ID: /devices/pci0001:10/0001:10:17.0 SysFS BusID: 0001:10:17.0 Hardware Class: unknown Model: "Apple KeyLargo/Intrepid Mac I/O" Vendor: pci 0x106b "Apple Inc." Device: pci 0x003e "KeyLargo/Intrepid Mac I/O" Driver: "macio" Memory Range: 0x80000000-0x8007ffff (rw,non-prefetchable) Module Alias: "pci:v0000106Bd0000003Esv00000000sd00000000bcFFsc00i00" Config Status: cfg=new, avail=yes, need=no, active=unknown 15: PCI 1100b.0: 0600 Host bridge [Created at pci.328] Unique ID: zM3W.OKqHekp9WN3 SysFS ID: /devices/pci0001:10/0001:10:0b.0 SysFS BusID: 0001:10:0b.0 Hardware Class: bridge Model: "Apple UniNorth 2 PCI" Vendor: pci 0x106b "Apple Inc." Device: pci 0x0035 "UniNorth 2 PCI" Module Alias: "pci:v0000106Bd00000035sv00000000sd00000000bc06sc00i00" Config Status: cfg=new, avail=yes, need=no, active=unknown Cheers, Josep M. Perez -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/f708a000-4d2e-4233-a543-91ddeb0b5...@gmail.com