Wanted: Pure - AP version

Discussion in 'Tarifa Firmware' started by PacoSS, Nov 12, 2005.

  1. PacoSS

    PacoSS Network Guru Member

    In www.almeria-wireless.org we have a free network with 15 nodes actually, using OSPF and covering 90% of our 180,000 inhabitants city at roof level.
    We are using some Linksys WRT54G from v.1.1 to 3.0 most of them operating in WDS and a few using another AP in client mode.

    Cause many of our AP's are in towers operating only with Wireless side, we allways ask to the developers of firmware for:

    1.- Very Stable.
    2.- Iptables disabled by default, no logs.
    3.- OSPF (cause Satori Static Routes never has work for us).
    4.- Wireless parameters by defaults optimized for medium distances (about 800 meters to 1'7 km).
    5.- An .asp page with all the clients connected, mac's, signals and their ip's.

    - QOS (equal chance rule would be fine) in the wireless, to avoid higher signals kill lower signals/rates. Nothing related to ports or protocols.
    - Any easy way like smnp to monitor AP activity (bandwidth, number of clients, free ram). A MRTG page would be really appreciated, but we know that the ram limit is low.
    - If any user try to make http connections outside our ip range, the AP will send an static HTML page informing about our non-profit association (maybe a little http server is needed for it?), cause to share Internet is a crime in Spain.

    Any other feature as QOS, NAT, all about internet connection (poee, ppp, ...) must be removed. Only AP mode is needed.
    I thinks that removing this from the source code will left enough space to make any of the most wanted features listed.

    Thanks for your fantastic job!
    Paco Segura . http://infores.info
  2. jchuit

    jchuit Network Guru Member

    To Paco

    Thanks for your input, maybe I will implements the idea's in future builds.

    OSPF isn't supported at the moment, the WDS bridge operates with a netmask.
    Maybe there are other solutions which are more simple, but one of the main pros of OSPF is, that this has loop protection and it can give path-redundancy and will give the optimal transmission path.

  3. sasan

    sasan Network Guru Member

    oh yes im looking for exactly this, pure ap, is any firmvare of this kind released? or will be?
  4. jchuit

    jchuit Network Guru Member

    AP mode, OSPF, gateway

    To Sasan

    If there is no cable connected to the WAN port, the gateway service isn't started. This means that you can use the router as an pure AP.

    The WAN port must be connected to start the WAN services, you can check this in the status->router page. The RAM memory will have 5Mbyte of free RAM.

    The dhcp service and the loopback service must be disabled manually.

    I hope this anwers your questions.

  5. sasan

    sasan Network Guru Member

    yes i know this but when i using torrent behind linksys used as AP or switch, it drops connection after few minutes despite PCs conected directly behind my pclinux router work normally
  6. jchuit

    jchuit Network Guru Member

    That's strange, I have never seen this issue. I am using bittorrent too, never seen that this happens.

    Are you sure you have not put a wire in the WAN port instead of the LAN-switch port?

  7. sasan

    sasan Network Guru Member

  8. jchuit

    jchuit Network Guru Member

    The amount of memory free.

    the special note is, I think, for the wrt54gL used as a gateway.

    But, I did a test.
    For this I used a wrt54g v3.1 which was 13 days up and running with the Tarifa b019 firmware, connected by using wds to a gateway.
    Loopback is disabled.

    The amount of memory free after the inititial boot was nearly 6 MByte, this has decreased to 3.6 Mbyte after 13 days of (intensive) use.

    In TELNET I made a list of all jobs running ( PS )
    3 processes where started but not needed: dnsmasq, upnp, udhcpc. After KILL -ing these processes, I freed 300 kBytes, and do now have 3.9 Mbyte free. This means 2 Mbyte has been used. (ps, a part of this is gone into the RAM-cache, about 1.2Mbyte is lost.)

    Via DMESG you can get a log of what is loaded: netfilter/ip_tables is loaded but not needed, is this the trouble maker?

    The Tarifa firmware uses the default netfilter/ip_tables with Linux 2.40.20

  9. sasan

    sasan Network Guru Member

    this i found in dmesg:

    ip_conntrack version 2.1 (512 buckets, 4096 max) - 336 bytes per conntrack
    ip_tables: (C) 2000-2002 Netfilter core team
    ipt_random match loaded
    netfilter PSD loaded - (c) astaro AG
    ipt_osf: Startng OS fingerprint matching module.
    ipt_IPV4OPTSSTRIP loaded

    i use in moment dd-wrt, wan is disabled, services like dnsmacq and other too, i did what is on that utorrent page, but still!!!!!

    is posible to throw away netfilter/ip_tables? and all that stuff about connections? plz say yes :)

    i have almost everytime about 4mb of ram free and cpuusage is 0.00-0.01
  10. jchuit

    jchuit Network Guru Member

    No, you can't, but maybe someone has an idea.

    DD-wrt v23 uses the Linux kernel of OpenWRT, the netfilter/iptables is part of this.

    What you can do is:
    1. Use openwrt-RC5.
    2. Restart your wrt every day or every week.

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