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not all connected devices show an IP address, why?

Discussion in 'Tomato Firmware' started by JustinChase, Nov 17, 2013.

  1. JustinChase

    JustinChase Reformed Router Member

    I connected to the router with my laptop, and it shows this device with IP 192.168.1.74 (which I think was actually assigned by a different wireless network/connection before connecting to Tomato.

    I also see 3 other devices connected, each with their MAC address displayed, but none show their IP address. They are all Android phones, but it still seems weird to not have an IP address displayed. Is this normal, or should I see IP addresses for all connected devices?
     
  2. Victek

    Victek Network Guru Member

    You shall see, unless the leased time gone... Tomato version used?
     
  3. JustinChase

    JustinChase Reformed Router Member

    Tomato Firmware v1.28.7503 MIPSR2Toastman-RT K26 USB VLAN-VPN-NOCAT

    I'm not sure what you mean 'I shall see', but it sounds ominous. Does it mean I should be seeing the other machines IP addresses, or is it normal to not see them?
     
  4. lefty

    lefty Networkin' Nut Member

    By default in toastman builds dhcp is disabled, did you turn on dhcp?
     
  5. mvsgeek

    mvsgeek Addicted to LI Member

    I see this from time to time. As Victek says, it's an expired lease issue. Device Display page still show MAC address, but the IP has been released. Unless the device reconnects, the MAC address will eventually disappear from Device Display. Nothing to worry about.
     
  6. JustinChase

    JustinChase Reformed Router Member

    Well, I did have DHCP disabled in the router, but have since turned it on. I set the range from 192.168.1.150 to 225, then I did ipconfig /release on my machine, then ipconfig /renew and once again received 192.168.1.74 as my IP address, so I'm not sure where that IP is coming from, since it's now outside the range I just created.

    Furthermore, I still see 3 android devices, and all 3 should be connected as I type, and none show an IP address. It feels like something is wrong here, but I only installed Tomato (from DD-WRT) a few days ago, so I'm still feeling my way around.

    should I be seeing IP addresses for all connected devices? I assume so, but maybe I'm 'doing it wrong.'
     
  7. Victek

    Victek Network Guru Member

    flushdns to clear cache in your machine, If you like to add another IP to your PC add it to dhcp_list. Normally device MAC remains in device_list when you added to dhcp list... or the lease period is not ended.
     
  8. JustinChase

    JustinChase Reformed Router Member

    okay, but the concern is not really with my IP address, it's that none of the other connected machines show an IP address, and it seems to me that they should.
     
  9. mvsgeek

    mvsgeek Addicted to LI Member

    If your client is a Windows PC, check in control panel to see if you have a static IP of 192.168.1.74. If so, that's where it's coming from.

    Your 3 Android devices may still be showing up in Device Display, but I'll bet they aren't connected.
     
  10. lefty

    lefty Networkin' Nut Member

    If you haven't already - Enable dhcp, reboot unit, then renew leases on the devices in question. See if that helps.
     
  11. JustinChase

    JustinChase Reformed Router Member

    one of the laptops and one of the android phones that used to be connected lost their internet after I turned on DHCP on the router, 2 android phones, 1 iPhone and 1 laptop continued to have internet access. I tried changing some settings to get them access again, but eventually lost access for the laptop that had it (mine), and finally ended up reflashing the firmware to reset all settings, and to be absolutely sure I had the correct firmware for my router installed. I gave the 2.4Ghz network a different name, left DHCP turned off, and everyone seems to have access again.

    I just looked at the "Device List" in Tomato, and see my computer has an IP address assigned, the other laptop is currently surfing the internet right next to me, and it shows in the device list, but does NOT show an IP address. 2 android phones also are shown, but neither shows an IP address.

    I guess I shouldn't worry, since they seem to have internet access, but it's weird to me that Tomato is not listing their IP address, as I think it probably should.
     
  12. mvsgeek

    mvsgeek Addicted to LI Member

    With DHCP turned off on the router, your devices (with one exception) are getting their IP addresses from a DHCP server somewhere further upstream - either another router or a cable/DSL modem. In that situation, Device List doesn't show IP addresses for eth1 (wireless) connections. The exception (your computer) probably has a static IP address defined in its network properties. If you want to see eth1 IP addresses displayed, you'll need to identify and disable the upstream DHCP server, and enable DHCP on your router. Probably not worth the trouble given that everything is working;)
     
  13. JustinChase

    JustinChase Reformed Router Member

    I've finally had some time to look into this some more, and I'm pretty sure the wireless devices are not getting their IP from the upstream modem/router, since they have IP addresses within the IP range I've told the tomato router to assign (i.e. 192.168.20.###).

    What else might I need to change to have the local machine IP address show in the QoS details page?

    I am trying to download something, and it shows a download speed that is about 1/2 of the total shown on the QoS graphs page, but I can't figure out what else is using bandwidth, since everything shows the modem IP address.
     

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