Device List in 1.15

Discussion in 'Tomato Firmware' started by LLigetfa, Feb 2, 2008.

  1. LLigetfa

    LLigetfa LI Guru Member

    I'm trying to understand how the device list works. At first I thought it was based on the routers ARP table and when a MAC aged out, it was gone. At least that's how it seemed to work in 1.13 by my recollection.

    Now under 1.15, when a wireless client connects, it shows up under eth1 complete with RSSI and quality but then after disconnecting, it seems to linger around as bro obviously without the RSSI, I think for the duration of the lease. Why does it linger around long after it has disconnected? I don't recall 1.13 doing that.
  2. LLigetfa

    LLigetfa LI Guru Member

    Nobody else notice a change in behaviour? Nobody else care?

    Personally, I am of the opinion the Device List should only list current (or very recent, as in still in the ARP cache), and not something that yesterday pulled an IP lease.
  3. Mercjoe

    Mercjoe Network Guru Member

    I believe it has been that way for a LONG time. I was running 1.11 till last week and I still had the 2 computers from my friends still on the device list. They had been disconnected for about a month when I noticed it,
  4. LLigetfa

    LLigetfa LI Guru Member

    Hmmm... interesting. How long was their lease? I'm finding they disappear as soon as the lease expires. Ja, I know that I could shorten the lease but...

    My memory might be failing... don't recall 1.13 being this way... could be wrong though.
  5. Mercjoe

    Mercjoe Network Guru Member

    default lease time of 3600 minutes.

    I have never seen it reset a disconnected machine unless you softboot the router. I never thought it was unusual.

    In fact, I like it.

    If I was to get compromised somehow (wireless), it would leave the IP and MAC address listed and I would know that they had been there.
  6. bhlonewolf

    bhlonewolf LI Guru Member

    In 1.13 I use two routers as access points, and when I roam around, I see a near instantaneous switch from one to the other in the device list. By near instant, I mean about 5 seconds or so, maybe 10 in some cases.
  7. Low-WRT

    Low-WRT LI Guru Member

    I check the device list often, to see if anyone has gotten in wirelessly.
    EDIT--And wireless clients do disappear after the lease time(one day for me) runs out.
  8. LLigetfa

    LLigetfa LI Guru Member

    Using the device list as a sort of post mortem log would only work if the wireless intruder pulled an IP from DHCP. If someone proficient enough to crack WPA/WPA2 got onto my router, I somehow doubt they would be asking DHCP for a lease and more than likely might even be spoofing one of my MAC addies.

    IMHO, the proper thing to log would be actual wl associations, something my other APs already routers do. I've asked Jon for the feature but alas, it is not to be.
  9. FRiC

    FRiC LI Guru Member

    I "think" the devices only linger if they receive IP addresses from the router. I have a separate DHCP server on my LAN, and my Tomato's device list is updated almost dynamically, i.e. if the user stops using the Internet for a few minutes, then the device disappears, even when the connections still exist in the QoS Details list.

    I'm using 1.11+VPN.
  10. Slavedriver

    Slavedriver LI Guru Member

    1.13 and devices appear in Device List as long as their lease is valid. Quite irritating sometimes.
  11. LLigetfa

    LLigetfa LI Guru Member

    mmm...k, thanks. So. my recollection was flawed. Been playing with Tomato since 1.07 but at work I use routers as APs only so they never give out IPs.
  12. szfong

    szfong Network Guru Member

    Your "friend" may be porn surfing/hacking with your router a few minutes every day at night or so and then disconnecting :-(

    check your logs!

    when they stop being your friends, you may get a knock on the door from the FBI/law enforcement hehe :(
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