similar to: tc offset & subheader matching clarification / question

iproute2 distribution in README.iproute2+tc includes toward the end an example of usage of syntax ''offset mask'' as follows: # Lookup hash table, if it is not fragmented frame # Use protocol as hash key $TC filter add dev eth1 parent 1:0 prio 5 handle ::1 u32 ht 800:: \ match ip nofrag \ offset mask 0x0F00 shift 6 \ hashkey mask 0x00ff0000 at 8 \ link 1: Also, identical

Hello! I am glad to announce a patch for u32 to allow matches on nfmark. The patch is non intrusive (few lines). Why I did this? Because fw classifier cannot be used together with u32. For example, now, you cannot match a mark of 0x90 and a destination port of 80. I know you can do it with iptables to do the marking, but if you use Jamal actions to apply mark to policed packets, you need

Hi fellows: Im wondering about compiling cls_u32 sch_htb and bridge into the kernel Are there any advantages or disadvantages doing this in terms of stability or crash problems? Thanks in advance for the replys Victor __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com

Hi All, I found 2 unusual behavior with u32 classifier in Kernel 2.4.12. I’ve u32 compiled as module. 1> u32 filter seems not working if there is already some fw filter used for some other class. In order to get u32 working I’ve to delete root class, which in terms delete all fw filters too, and then same command for u32 works. fw is also compiled as module. 2> If I add u32 filter to my

Hello Everyone, I have this weird problem. I have 2.6.10-rc2-mm3 kernel with u32 compiled as module. I have the cls_u32 module loaded. I have different binaryes of tc, the one from iproute packaged from debian sarge, the Kaber''s one from trash.net, and also from another computer where u32 worked. When I run this: cyclops:~# /usr/local/sbin/tc filter add dev eth0 parent 6: protocol ip

Ok, After much research and e-mails to the list, I''m finally to the point where I have filtering setup properly. Now, I''m trying to figure out tc filter so that I can classify packets on both eth0 and eth1. So, lets take for example Samba traffic. I want to be sure that its being sent with relative speed so that my shares don''t get lagged. And what the heck, its

After starting to shape local traffic now i am getting a lot of kernel panics in tcp_retransmit, so i decided to update my kernel from 2.6.17.14 to 2.6.21.1 , the problem is that after that i get: # iptables -t mangle -A POSTROUTING -o eth0 -j IMQ --todev 0 iptables: No chain/target/match by that name so i can not redirect ttraffic to IMQ device. and modules are loaded. - # lsmod Module

i'm a chinese programmer, i want to write a system call to create an filter attach with some qdisc, but i don't know the filter param's struct in the kernel. i just know the struct struct tc_u32_key { __u32 mask; __u32 val; int off; int offmask; }; struct tc_u32_sel { unsigned char flags; unsigned char offshift; unsigned char nkeys; __u16 offmask; __u16 off;

Hi, I have a box with RH 7,2 upgraded to Fedora Core 1. with: kernel 2.4.26 iptables 1.2.9 gcc 3.2.2 In this momment I''m using a binary TC version, but when I try to compile, get errors in Make process. Any hints ? Bests. Andres. ----> iproute2-2.4.7-now-ss010824.tar.gz make[1]: Cambiando a directorio `/usr/local/src/iproute2/lib'' gcc -D_GNU_SOURCE -O2

PATCH 1 ======= On my machine tc does not parse filter "sample" for the u32 filter. Eg: tc filter add dev eth2 parent 1:0 protocol ip prio 1 u32 ht 801: \ classid 1:3 \ sample ip protocol 1 0xff match ip protocol 1 0xff Illegal "sample" The reason is a missing memset. This patch fixes it. diff -Nur iproute-20051007.keep/tc/f_u32.c iproute-20051007/tc/f_u32.c

Hi, I am attempting to set up some simple outbound shaping following the LARTC HOWTO. The HTB qdisc seems to work as the documentation says, but my filters don''t seem to be working. All of the packets go to the default queue regardless of what filters I set, it seems. (according to tc -s qdisc show) I am trying to get this working on my openwrt box (whiterussian rc6), but when

Help me  ... I try use the tc filter, but seems he doesn''t work, I already reconfigured my kernel ( 2.4.32 ) with all options related a QOS enabled ( like modules ) and nothing happens. I get the tc tool from HTB source package, well  this is my set : eth0 is my internal NIC. tc qdisc add dev eth0 root handle 1: htb default 12 tc class add dev eth0 parent 1: classid 1:1 htb rate

Help me  ... I try use the tc filter, but seems he doesn''t work, I already reconfigured my kernel ( 2.4.32 ) with all options related a QOS enabled ( like modules ) and nothing happens. I get the tc tool from HTB source package, well  this is my set : eth0 is my internal NIC. tc qdisc add dev eth0 root handle 1: htb default 12 tc class add dev eth0 parent 1: classid 1:1 htb rate

Dear Devs, I have x4 4TB HDDs formatted with: mkfs.btrfs -L bu-16TB_0 -d raid1 -m raid1 /dev/sd[cdef] /etc/fstab mounts with the options: noatime,noauto,space_cache,inode_cache All on kernel 3.8.13. Upon using rsync to copy some heavily hardlinked backups from ReiserFS, I''ve seen: The following "block rsv returned -28" is repeated 7 times until there is a call trace

Hello I''ve setuped a QOS bridge under debian 3.1 using 2.6.18.3 kernel + iptables 1.3.6 I''ve patched the kernel an Iptables with esfq+layer7 without problems. This simple script doesn''t log nothing ... And I''m sure to have eMule traffic (I''ve checked with tcpdump ) If I remove " -m layer7 --l7proto edonkey \" line I can see

On my debian woody (kernel 2.4.31) the tcpdump doesn''t work with imq0 devices. If I try to tcpdump imq devices there is no packet seen: [...] rt1:~# tcpdump -n -i imq0 Warning: arptype 65535 not supported by libpcap - falling back to cooked socket tcpdump: WARNING: imq0: no IPv4 address assigned tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on

Group, I am reading about tc (traffic control) and willing to get my feet wet. As requirement, there should be HTB compiled in the kernel. I grabbed a Mandrake 8.2 distro, and didn''t installed the kernel source. Anyone knows if the HTB is compiled in Mandrake 8.2, or point a way to find that out? I tried to read the /usr/src/kernel.xxxxx/.config file, but it doesn''t exists.

Hi! Been having the same problem with oplocks for a while and have been trying to figure out what's going wrong. The FAQ says that we may have a networking (hardware?) problem, but according to the Linux box's ifconfig results, we have had no errors and no dropped packets on the internal network. I am able to reproduce the error pretty much at will on our network, and it is not isolated

Hi, I'm running CentOS 6.5 as NFS server (v3 and v4) and exporting Ext4 and XFS filesystem. After many months that all works fine today the server crash: Jan 30 09:46:13 qb-storage kernel: ------------[ cut here ]------------ Jan 30 09:46:13 qb-storage kernel: WARNING: at lib/list_debug.c:26 __list_add+0x6d/0xa0() (Not tainted) Jan 30 09:46:13 qb-storage kernel: Hardware name: PowerEdge

Dear Admins and Hackers, maybe i am to stupid to use ''tc''. But i having logical Problems to understand the Filter Rules in tc. Common Config: There is a Linux Engine (Debian) with a 2.6.11.11 Kernel which act as Packetshaper. Two Interfaces eth0 and eth1 are installed. Interface ''eth0'' is the Firewall Side Net 195.185.185.0/24. Interface