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Thread: NESS D8XD alarm system deault ip address confusion

  1. #1

    NESS D8XD alarm system deault ip address confusion

    Dear folks

    NESS D8XD alarm system installed on a business for my friend and a technician who installed it he said he didn't change the alarm system default ip address.

    http://nesscorporation.com/ness-secu...ty/k-6308.html

    Default ip is 192.168.0.251 ,,,as per the advise of their National Customer Service Centre,,,I called them and spoke with them

    The confusing part I can ping this ip address (192.168.0.251) but it is neither in the list of the attached wired devices nor in the list of attached wireless devices (any way NESS is a wired box)

    Snapshot below is for the attached wired devices :

    https://imgur.com/a/GPvm98R

    And the ping result is below :

    Code:
    C:\WINDOWS\System32>ping 192.168.0.251
     
    Pinging 192.168.0.251 with 32 bytes of data:
    Reply from 192.168.0.251: bytes=32 time=6ms TTL=64
    Reply from 192.168.0.251: bytes=32 time=2ms TTL=64
    Reply from 192.168.0.251: bytes=32 time=3ms TTL=64
    Reply from 192.168.0.251: bytes=32 time=4ms TTL=64
     
    Ping statistics for 192.168.0.251:
        Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 2ms, Maximum = 6ms, Average = 3ms
    Confusion how can I ping the ip address and it is not listed in my router table ???

    Thanks

  2. #2
    Administrator Philip's Avatar
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    Your router usually acts as a DHCP server, giving out dynamic IP addresses in its range, as in 192.168.0.*, or 192.168.1.*.. You may be looking at just those dynamic IP clients in your router's admin interface. Even if it shows other static IPs, it may only show them when there is activity from those devices, and it may be in a different list.

    Any client that you set in your router's subnet/IP block will be able to communicate with each other, regardless of whether it shows up in the router list. If you'd like to test whether your router sees static IPs, you can try setting your PC's IP manually to something in the 192.168.0.* range (preferably outside of the router's DHCP server range). You can then check if that new static IP shows in your router's client list.

  3. #3
    You can then check if that new static IP shows in your router's client list.
    The ip address 192.168.0.200 in the snapshot attached is for an industrial printer and it is a static ip address as this ip address had an activity (traffic sent and received)

    it may only show them when there is activity from those devices,
    I guess when there was no activity from the static ip address device it won't show in the list, therefore when I did ping to 192.168.0.251 (i.e created activity) but before restarting the router I wasn't able to see it even traffic was generated

    What I did I restarted the router and now I can see the alarm system ip address 192.168.0.251 in the list as per below snapshot

    https://imgur.com/a/lonmnzb

    Regards

  4. #4
    Administrator Philip's Avatar
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    Sounds like all is well. Yeah, it may take a while for them to show up, especially if there is no activity, thanks for following up.

  5. #5
    Thanks Philip for your help

  6. #6
    Philip

    Please have a look at the result below

    Ping from a PC within the same network didn't show static ip addresses for printer and alarm control system within ARP table

    Then I did ping both addresses 192.168.0.200 (printer) and 192.168.0.251 (Alarm system) as a result both of them shown in ARP table,,,,,means when there is activity (traffic) then it would be shown in ARP table!!!

    Second issue both ip addresses 192.168.0.200 (printer) and 192.168.0.251 (Alarm system) shown as dynamic not static why ???


    Code:
    C:\Users\showroom>arp -a
    Interface: 192.168.0.219 --- 0xc
    Internet Address     Physical Address     Type
    192.168.0.1         10-da-43-f0-d4-0d     dynamic
    192.168.0.217         cc-6e-a4-4a-33-8f     dynamic
    192.168.0.225         10-bf-48-7e-94-f3     dynamic
    192.168.0.226         2c-fd-a1-bb-56-f8     dynamic
    192.168.0.229         10-bf-48-7e-94-f3     dynamic
    192.168.0.230         1c-b7-2c-de-ec-fb     dynamic
    192.168.0.231         10-7b-44-49-f3-66     dynamic
    192.168.0.234         cc-6e-a4-4b-cc-2d     dynamic
    192.168.0.255         ff-ff-ff-ff-ff-ff     static
    224.0.0.7             01-00-5e-00-00-07     static
    224.0.0.9             01-00-5e-00-00-09     static
    224.0.0.22         01-00-5e-00-00-16     static
    224.0.0.251         01-00-5e-00-00-fb     static
    224.0.0.252         01-00-5e-00-00-fc     static
    239.255.255.250     01-00-5e-7f-ff-fa     static
    239.255.255.251     01-00-5e-7f-ff-fb     static
    255.255.255.255     ff-ff-ff-ff-ff-ff     static
    
    
    
    ####Printer ip address is static ########
    
    ---------------------------------------------------
    
    
    C:\Users\showroom>ping 192.168.0.200
    
    Pinging 192.168.0.200 with 32 bytes of data:
    Reply from 192.168.0.200: bytes=32 time=4ms TTL=64
    Reply from 192.168.0.200: bytes=32 time=1ms TTL=64
    Reply from 192.168.0.200: bytes=32 time=4ms TTL=64
    Reply from 192.168.0.200: bytes=32 time=2ms TTL=64
    
    Ping statistics for 192.168.0.200:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 1ms, Maximum = 4ms, Average = 2ms
    
    C:\Users\showroom>arp -a
    
    Interface: 192.168.0.219 --- 0xc
    Internet Address     Physical Address     Type
    192.168.0.1         10-da-43-f0-d4-0d     dynamic
    192.168.0.200         80-38-96-ca-f8-1d     dynamic
    192.168.0.217         cc-6e-a4-4a-33-8f     dynamic
    192.168.0.225         10-bf-48-7e-94-f3     dynamic
    192.168.0.226         2c-fd-a1-bb-56-f8     dynamic
    192.168.0.229         10-bf-48-7e-94-f3     dynamic
    192.168.0.230         1c-b7-2c-de-ec-fb     dynamic
    192.168.0.231         10-7b-44-49-f3-66     dynamic
    192.168.0.234         cc-6e-a4-4b-cc-2d     dynamic
    192.168.0.255         ff-ff-ff-ff-ff-ff     static
    224.0.0.7             01-00-5e-00-00-07     static
    224.0.0.9             01-00-5e-00-00-09     static
    224.0.0.22         01-00-5e-00-00-16     static
    224.0.0.251         01-00-5e-00-00-fb     static
    224.0.0.252         01-00-5e-00-00-fc     static
    239.255.255.250     01-00-5e-7f-ff-fa     static
    239.255.255.251     01-00-5e-7f-ff-fb     static
    255.255.255.255     ff-ff-ff-ff-ff-ff     static
    
    
    ####Alarm box its ip address static as well  ####
    
    ------------------------------------------------------------
    C:\Users\showroom>ping 192.168.0.251
    
    Pinging 192.168.0.251 with 32 bytes of data:
    Reply from 192.168.0.251: bytes=32 time=6ms TTL=64
    Reply from 192.168.0.251: bytes=32 time=1ms TTL=64
    Reply from 192.168.0.251: bytes=32 time=1ms TTL=64
    Reply from 192.168.0.251: bytes=32 time=9ms TTL=64
    
    Ping statistics for 192.168.0.251:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 1ms, Maximum = 9ms, Average = 4ms
    
    C:\Users\showroom>arp -a
    
    Interface: 192.168.0.219 --- 0xc
    Internet Address     Physical Address     Type
    192.168.0.1         10-da-43-f0-d4-0d     dynamic
    192.168.0.200         80-38-96-ca-f8-1d     dynamic
    192.168.0.217         cc-6e-a4-4a-33-8f     dynamic
    192.168.0.225         10-bf-48-7e-94-f3     dynamic
    192.168.0.226         2c-fd-a1-bb-56-f8     dynamic
    192.168.0.229         10-bf-48-7e-94-f3     dynamic
    192.168.0.230         1c-b7-2c-de-ec-fb     dynamic
    192.168.0.231         10-7b-44-49-f3-66     dynamic
    192.168.0.234         cc-6e-a4-4b-cc-2d     dynamic
    192.168.0.251         ac-c9-35-e0-06-00     dynamic
    192.168.0.255         ff-ff-ff-ff-ff-ff     static
    224.0.0.7             01-00-5e-00-00-07     static
    224.0.0.9             01-00-5e-00-00-09     static
    224.0.0.22         01-00-5e-00-00-16     static
    224.0.0.251         01-00-5e-00-00-fb     static
    224.0.0.252         01-00-5e-00-00-fc     static
    239.255.255.250     01-00-5e-7f-ff-fa     static
    239.255.255.251     01-00-5e-7f-ff-fb     static
    255.255.255.255     ff-ff-ff-ff-ff-ff     static
    Printer ip address is below :

    https://imgur.com/a/5D1uh2c

    Thanks

  7. #7
    Administrator Philip's Avatar
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    Everything in the 192.168.0.* range seems to be classified as "dynamic".. What is the range of the DHCP server? It shouldn't include any "static" IP addresses, such as printers set manually to a static IP, the alarm, etc. Windows 10 arp -a tends to show everything in the local range as "dynamic" for some reason, I wouldn't rely on it to always be correct.

    Other than that I wouldn't worry about them only showing when there is activity/pings.

  8. #8
    What is the range of the DHCP server?
    Range from 205-249
    https://imgur.com/a/Bungfwf


    I wouldn't rely on it to always be correct.
    I see
    Last edited by zillah; 12-04-18 at 12:38 AM.

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