What is my wireless router's IP? (Sorry 192.168.1.1 is not the answer!)

Discussion in 'OS X' started by Bobdude161, Dec 28, 2006.

  1. macrumors 65816

    Bobdude161

    Joined:
    Mar 12, 2006
    Location:
    N'Albany, Indiana
    #1
    Before you type "192.168.1.1", let me explain whats going on. I have a wired router that connects to my modem, then a switch that is connected to my router, then a wireless router connected to my switch. I already have my wireless router set-up as an access point and the last time I accessed it's setup it's IP was 192.168.1.104. But now a day later, that IP doesn't work. Seems my wired router reset IP numbers. I've tried numbers 192.168.1.100-105 since there's only 4 things hooked up (Mac, PC, Wii, wireless router), tried 192.168.2.1, then the higher numbers like 192.168.1.250-255. Nothing.

    I've poked around Network Utility but I don't know what I'm doing there. Is there some way to see what IP numbers are connected to my wired router so I can then find out which one is my wireless router?
     
  2. macrumors 6502

    Joined:
    Jul 28, 2006
    #2
    192.168.0.1
     
  3. macrumors newbie

    Joined:
    Oct 26, 2006
    Location:
    Nashville, TN
    #3
    What brand are the routers? What kind of Mac do you have, MacBook, etc? How many Ethernet ports are on the wireless router, does it only have the "internet" port, or does it have some other wired ports?
     
  4. macrumors 68020

    Joined:
    Mar 21, 2006
    Location:
    Hoosiertown
    #4
    so to system preferences -> network -> The airport settings -> then tcp/ip and next to router you'll find its ip.
     
  5. macrumors 68000

    4JNA

    Joined:
    Feb 8, 2006
    Location:
    looking for trash files
    #5
    the wired router is actually where you want to go, as it sounds like the access point is getting moved, which means DHCP. so, since it was x.1.104, the wired router should be 192.168.1.1. login to the wired router, look at the LAN/DHCP settings, and it should show a current list of assigned addresses. pc, mac, and wii should have names, wireless may only show the MAC (no name)... either way it should show you the current ip.

    you may also want to try unpluging the wireless access point power for about 30 seconds, and then plug it back in. some have a habit of getting hung. wireless will still be working, but no login kinda stuck. best of luck.
     
  6. macrumors newbie

    Joined:
    Oct 26, 2006
    Location:
    Nashville, TN
    #6
    Unless I misunderstand, I don't think that will work. I read into it that he's not connected to the wireless router via the airport. I read into it that the wireless router and the Mac are both connected to the same wired network and he wants to know what the IP address of the wireless router is ont he wired network. Is that right Bobdude161?
     
  7. macrumors 68020

    Joined:
    Mar 21, 2006
    Location:
    Hoosiertown
    #7
    ohh after re re reading the op I think you're right. also you could download nmap compile it learn how to use it and scan your net work :D
     
  8. thread starter macrumors 65816

    Bobdude161

    Joined:
    Mar 12, 2006
    Location:
    N'Albany, Indiana
    #8
    Sorry 192.168.0.1 is not the answer. :p

    The wired router is a Linksys and the wireless one is a Belkin. My mac is in my sig. Only the uplink port is being used on the wireless router

    Good guess, but I'm getting my wired router's IP and not the access-point's (wireless router) IP

    Looked at my Linksys wired router settings and it says there's only three things hooked up to it. My Mac, PC and a nameless device which must be my Wii. Powering off the Belkin wireless didn't do anything either. :eek:

    I am wirelessly connected via a 3rd party wireless card on my Mac. But yes I do want to know the wireless router's address

    It's worth a try i suppose. :)
     
  9. macrumors regular

    robert05au

    Joined:
    May 19, 2005
    Location:
    Newcastle, NSW
    #9
    Some have started using this

    192.168.16.1 or 192.167.16.0

    It may just help

    :cool:
     
  10. macrumors 6502

    Joined:
    Jun 23, 2003
    #10
    just browsing these replies it's clear you're posting this question at the wrong website. Never have so many neophytes offered so much useless information. They mean well, I guess.

    PS I know the answer, but I charge $85 an hour for my knowledge as a freelancer. Good luck to you.
     
  11. macrumors 6502

    hanschien

    Joined:
    Oct 2, 2006
    Location:
    Houston, TX
    #11
    Do a Traceroute to google.com in Network Utility. It should be the first IP address; 2nd one should be your wired router.
     
  12. macrumors 68020

    Joined:
    Mar 21, 2006
    Location:
    Hoosiertown
    #12
    hahaha you're funny. neophyte. ha

    no he's not connected to the router. It's on the same network. So none of his data is going through it.


    Anyways i thought of something Is wireless router a continuation of ip addresses on your wired network? Or does it assign new ip addresses. In other words is it acting more like a hub or a router? If the first one is true you could simply get on the wifi network and gets its ip address from the first way i mentioned.

    But seriously Install xcode and compile nmap its really easy. Its also easy to use.
     
  13. macrumors 68000

    4JNA

    Joined:
    Feb 8, 2006
    Location:
    looking for trash files
    #13
    so the access point has a static ip. traceroute won't work as the AP is only a pass and won't register as a hop.

    on the mac, open terminal and type:

    ping 192.168.1.255

    let it run for a bit, then use ctrl -c to stop the ping command. then type:

    arp -a

    should show you the 4 IPs. the one you don't already know will be the access point.

    edit: if you prefer windows :confused: you could cut and paste this into a command window, and it will scan the whole range and give you a text document on the c: drive...

    FOR /L %i IN (1,1,254) DO ping -n 1 192.168.1.%i|FIND /i "Reply">>c:\ipaddy.txt
     
  14. Moderator

    balamw

    Staff Member

    Joined:
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    Location:
    New England
    #14
    Alternatively to arp look at the wired router's DHCP table and eliminate the three IPs you already know.

    B
     
  15. macrumors P6

    Peace

    Joined:
    Apr 1, 2005
    Location:
    Space--The ONLY Frontier
    #15
    Try 172.16.1.1 or 10.0.1.1

    One of those could be the Belkin wireless router.
     
  16. thread starter macrumors 65816

    Bobdude161

    Joined:
    Mar 12, 2006
    Location:
    N'Albany, Indiana
    #16
    HA!! I win!

    turns out it was 192.168.2.254. But I only discovered that, once I reset all my settings on the wireless router to default. That's why the wired Linksys router didn't list the belkin wireless router on the DHCP table. So now after a long process of putting all my settings back, I just assigned it 192.168.1.254 so it would at least stay in the 192.168.1.x range. Thank you very much everyone for your support. And thank you Belkin for being a pain in the a** for making your dafualt IP address different from Linksys, lol. :p

    And now what is interesting, is that when the wireless router comes up on the Linksys DHCP table it shows the Belkin's IP as 192.168.1.102 (even after DHCP renewing). But when I type in the number, nothing happens. In order to access the setup fo the Belkin wireless router I have to tpye in Belkin's own designated IP address which was previously stated as 192.168.1.254. It's not a problem, just wanted to point that out. :)
     
  17. macrumors 68020

    Joined:
    Mar 21, 2006
    Location:
    Hoosiertown
    #17
    what a weird IP address. Strange story for me, My MBP decided to add a new networking port for some reason and thought it was connected to 10.13.7.xxx even when nothing was plugged in.
     
  18. macrumors 6502

    tombarnes

    Joined:
    Feb 26, 2006
    Location:
    Cornwall, United Kingdom
    #18
    192.168.2.1

    That's mine for my Belkin Wireless Router

    Its strange that yours is 192.168.2.254.
     
  19. thread starter macrumors 65816

    Bobdude161

    Joined:
    Mar 12, 2006
    Location:
    N'Albany, Indiana
    #19
    It is a weird IP, but it's not the router's default IP. When I set the Belkin to an "Access Point", it put an ending number of the IP that would be out of range of the original router's DHCP range (which i think is x.x.x.100 to x.x.x.144) . The end part of the IP can only go up to 255 (x.x.x.255), but the Belkin router set itself to 254 because 255 is a special IP number that is used for something I don't know.

    I think that's how it goes.
     
  20. macrumors member

    djdawson

    Joined:
    Apr 28, 2005
    Location:
    Minnesota
    #20
    Another option

    One other thing you could have tried was running "tcpdump" in the Terminal (you need to run it as "sudo") and power cycle the wireless router and look at the tcpdump output for addresses you don't recognize. Most devices will either send a DHCP request or a "Gratuitous ARP" when they boot up, so by running tcpdump you could see this. Here's a sample command, but the actual command would have to reference whatever your ethernet interface is:

    sudo tcpdump -i en0 -n

    Use "control-c" to abort it after you've captured what you need. Note that you'll also see any other traffic going through that interface, so try not to do any web surfing at the same time or you'll capture a bunch of stuff you don't want to see.

    The advantage of this approach is that it'll show you *all* the packets hitting your interface, even if the source address is on a different network or subnet, which hosts normally ignore and won't show up in the ARP table. Since the Gratuitous ARP packet is a broadcast, it'll be send out every switch port, so you Mac should see it no matter what your IP address is.

    HTH
     
  21. Moderator

    balamw

    Staff Member

    Joined:
    Aug 16, 2005
    Location:
    New England
    #21
    x.x.x.255 is the broadcast address for a network with a typical netmask of 255.255.255.0. i.e. it's the address used to talk to all of the devices in the subnetwork.

    B
     
  22. macrumors G3

    clevin

    Joined:
    Aug 6, 2006
  23. Moderator

    balamw

    Staff Member

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    #23
  24. macrumors 6502a

    HowEver

    Joined:
    May 10, 2005
    Location:
    Toronto
    #24
    It's not like his puppy was dying and he needed you to operate.

    You could have been helpful given that eventually he was going to, and did, easily find the answer to his question. Choosing not to speaks volumes.


     

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