search for: boreham

In wireless networks it can be handy to shape by packet rate rather than bytes/s (because capacity is packet-rate-limited). Has anyone done any work on packet-rate shaping ? Thanks.

I''m grappling with a problem that looks like sfq is not working (packets don''t get fairly queued, they appear to be always sent FIFO). My configuration appears to be correct. The machine is running quite an old kernel and if I could convince myself that the sfq code it has is just broken, I''d spend the time to upgrade it. Is there any way to inspect or dump the sfq hash

Objective: All web traffic originating from my proxy server should be forwarded through interface eth2 instead of the default eth0. The reply should take the same path back to the proxy server. Problem: On the return bout, the kernel doesn''t pass the packet to the higher layers. The reply seems to be getting tossed away between PREROUTING and INPUT Netfilter chains.

Can''t get proxy arp with arp -s <IPaddr> <MACaddr> pub to work with a 2.4 kernel. I see some evidence in the archive that this was broken in the 2.0.x timeframe and never fixed. Anyone know for sure if it''s broken or working ? (I''m attempting to route a few addresses into a routed network, from the ethernet side of a DSL router that has a /29 public

Dear LATRC and devotees, I have developed some Linux queueing disciplines. I developed them for my masters project. You are free to use or distribute my work. Here is the abstract from my dissertation:- This is a project to implement a Mice and Elephants queuing discipline on Linux. My project has three aims. The first aim was to produce a prototype Mice and Elephants router

I have two ISP connections, and am having some issues. I can connect to any services on the firewall, like the smtp gateway, but anything on the internal server only works from one connection. The lartc guide has a good example for what to do for services on the box, but leaves it open for how to handle services on an internal host. I''ve tried using iptables to mark the packets

I''m currently trying to optimize a linux machine which acts as a Layer 3 router of RTP H.263 video. Occassionally I''ll get delays related to layer 2 wireless retries, thus rendering the video on the recieving end stale/useless. Is there way to optimize a linux machine to route realtime video? In my case, losing a few frames of H.263 is better than having the video delayed

Hi I''ve searched the archive for a solution where I want to limit/shape WLAN users. I only know''s their MAC, because they get their IP from dhcp. > Why not, just use negative offsets with U32 to access >the 14-byte eth frame header before the IP header: > >Decimal Ofs Description >----------------------------------- >-14: DST MAC, 6 bytes >-8: SRC MAC, 6

Hello, I run one of my PCs as my personal router, with iptables+tc to control traffic and be my firewall. In TC, I use a combination of htb, qdisc and sfq (as well as prio) to classify bandwidth. In my current setup, I have 10 classifications of my bandwidth. (Even I admit this is probably more than I need, but at this point I''m still learning, so I''ll just leave them be.)

Does anyone have any pointers on how other people have implemented tcp window adjustment to do bandwidth shaping? Granted the basic idea is to set the window size to be RTT * bandwidth, but a quick squiz at google turns up mostly papers on how to implement this at the sender end with a view to some new magic TCP implementation. I''m really interested in notes on how to implement at

Apologies if this is an FAQ, I wasn't able to find an answer googling: Will any of the public PSTN/VoIP gateway services (Vonage, Packet8 etc) interoperate with * ? I'd like to deploy a box which provides PBX service for analog handsets, and handles inbound/outbound calls via both analog PSTN lines, and, say Packet8 VoIP service. I understand that I can do this by connecting the analog