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I can ping a local IP that I can't identify


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murderdoll    0

Hello,

 

I'm really stomped on this mysterious problem I'm having. Today I found out that I can ping an IP which no device on my network has:

Pinging 192.168.0.1 with 32 bytes of data:
Reply from 192.168.0.1: bytes=32 time=21ms TTL=58
Reply from 192.168.0.1: bytes=32 time=47ms TTL=58
Reply from 192.168.0.1: bytes=32 time=14ms TTL=58
Reply from 192.168.0.1: bytes=32 time=49ms TTL=58

 

Here are the facts:

  • I can ping this IP from any device connected to my router (so it's not specific to a machine).
  • My router IP is 192.168.1.2 and my ADSL modem ip is 192.168.1.254
  • My router dhcp pool is 192.168.1.200 - 192.168.250
  • I can't ping 192.168.0.1 unless my router connects to the internet. (So while the router have no access to the internet my ping attempts fail)
  • I disconnected all clients from my router and tried to ping 192.168.0.1 directly from the router (ssh) and it worked. (only while connected to the internet)

This thing is really weird and I'm very curious, all my attempts to identify the IP has failed, this is why you guys are my last resort.

 

Thanks in advance,

 

 

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+BudMan    3,748

From the IP in that hop, here is is ISP

route: 194.165.128.0/22

descr: Jordan Telecom Group ( Orange)

Yeah they are clearly routing internal IP space.. Odd, but not unheard of..

1 <1 ms <1 ms <1 ms OpenWrt.lan [192.168.1.2]

2 13 ms 14 ms 13 ms 194.165.130.201

Yeah that shows your router has public IP, on the 194.165.x.x network -- so yeah misunderstand when you said your modem had IP of 192.168.1.254

I would contact your ISP and ask them about it.. They can route whatever they want in their internal network, but I doubt they want their customer routing internal like that. Quite possible it a configuration error on their part.

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Roger H.    780

I'm guessing it's the DHCP server on the modem itself? Since you mentioned internet, I'm guessing like cable modems, the DHCP is only live when connected to the internet?

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Ambroos    801

What's your PC's local IP and most importantly subnet mask while you can ping that IP?

 

DHCP should be live as long as the modem/router is turned on.

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cybertimber2008    43

Plug a computer directly into the ADSL modem, reboot it, and I'll bet you'll find the source of the IP is infact your ADSL modem.

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+BudMan    3,748

"My router IP is 192.168.1.2 and my ADSL modem ip is 192.168.1.254"

So your double natted then..

In a NORMAL setup your router would have a public IP on its wan interface, not another private.. So for all we know there is yet another NAT in front what what your calling your adsl modem?

I would for starters do tracert to this IP from a client.. This will tell you the device this IP is directly connected too..

"I can't ping 192.168.0.1 unless my router connects to the internet. "

This tells me its something conneted to your ADSL modem that has a private IP your using of 192.168.1.254, who says its not connecting to 192.168.0.1 on its WAN?

Again in a NORMAL setup your router would have a public IP, your clearly at min double natting if not triple, etc..

So you don't really have a ADSL "modem" what you have is a ADSL "gateway" ie router/modem combo. What does it say is wan IP is?

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+John Teacake    456

nmap it.

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murderdoll    0

"My router IP is 192.168.1.2 and my ADSL modem ip is 192.168.1.254"

So your double natted then..

In a NORMAL setup your router would have a public IP on its wan interface, not another private.. So for all we know there is yet another NAT in front what what your calling your adsl modem?

I would for starters do tracert to this IP from a client.. This will tell you the device this IP is directly connected too..

"I can't ping 192.168.0.1 unless my router connects to the internet. "

This tells me its something conneted to your ADSL modem that has a private IP your using of 192.168.1.254, who says its not connecting to 192.168.0.1 on its WAN?

Again in a NORMAL setup your router would have a public IP, your clearly at min double natting if not triple, etc..

So you don't really have a ADSL "modem" what you have is a ADSL "gateway" ie router/modem combo. What does it say is wan IP is?

 

I think you misunderstood some of the stuff I mentioned. My router does have a public IP on its wan interface, which is the IP assigned by my ISP when I connect to the internet.

 

I actually have an adsl modem like I said, here is the model I'm using http://www.allwaytech.com/catalog/index.php?main_page=product_info&products_id=235

It's connected to the WAN of my router.

 

However, your tracert suggestion is very smart in my opinion. It's really weird, the IP seems to be on my ISP network, is that even possible?

 

Tracing route to 192.168.0.1 over a maximum of 30 hops

  1    <1 ms    <1 ms    <1 ms  OpenWrt.lan [192.168.1.2]

  2    13 ms    14 ms    13 ms  194.165.130.201

  3    13 ms    12 ms    13 ms  10.50.3.225

  4    31 ms    13 ms    13 ms  10.50.1.133

  5    13 ms    12 ms    12 ms  10.50.1.130

  6    13 ms    14 ms    13 ms  192.168.0.1

 

Thanks for your help,

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Arachno 1D    7,992

Does you router have a software menu which lists device IP addresses?

Is it a dual network router perhaps i.e. green [safe] and red [unsafe] connection capability?

Please provide details on the router and a rough outline of connected hardware

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Arachno 1D    7,992

Some providers so I understand do use the IP addresses allocated to internal networks if they provide it say through cable

 

Try http://myip.nmonitoring.com/

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Top Qat    195

Well according to that site my internal IP is 127.0.0.1. Who knew?

I think it should say 192.168.1.8

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Ambroos    801

Hah. 127.0.0.1 is everyone's internal IP, it's a loopback.

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xendrome    5,583

What model model/make do you have?

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Som    439

Hello,

 

I'm really stomped on this mysterious problem I'm having. Today I found out that I can ping an IP which no device on my network has:

 

Here are the facts:

  • I can ping this IP from any device connected to my router (so it's not specific to a machine).
  • My router IP is 192.168.1.2 and my ADSL modem ip is 192.168.1.254
  • My router dhcp pool is 192.168.1.200 - 192.168.250
  • I can't ping 192.168.0.1 unless my router connects to the internet. (So while the router have no access to the internet my ping attempts fail)
  • I disconnected all clients from my router and tried to ping 192.168.0.1 directly from the router (ssh) and it worked. (only while connected to the internet)

This thing is really weird and I'm very curious, all my attempts to identify the IP has failed, this is why you guys are my last resort.

 

Thanks in advance,

well for a start your IP range is 192.168.1.1   ... i highlighted the .1 bold to becasue that is a different subnet to the one you are trying to ping ... 192.168.0.1 ... the .0 implies a different local network so me thinks your isp is using that address in their own network ... what type of ISP do you have? if it's a small company or a wireless only company then this might be the case....

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Hum    6,934

It is just the NSA listening in. :ninja:

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murderdoll    0

Thank you BudMan :) And thanks for the rest of you who tried.

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