NESS D8XD alarm system deault ip address confusion

[zillah]

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-security/ness-control-panels/home-security/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: [Select]

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

[camerongray]

Often the list of devices shown in your router is a list devices that the router has automatically given an IP address to over DHCP, if your alarm has had its IP address set statically then it may not show in this list.  If you can ping the device, it'll still be connected to the network and should work normally.

[zillah]

Often the list of devices shown in your router is a list devices that the router has automatically given an IP address to over DHCP, if your alarm has had its IP address set statically then it may not show in this list.  If you can ping the device, it'll still be connected to the network and should work normally.

Thanks for that
The ip address 192.168.0.200 is for an office printer that was installed by supplier and I am pretty sure  it is a static ip address 

[zillah]

I can see ip address 192.168.0.251 now after I restarted the router (second entry from the top)

https://imgur.com/a/lonmnzb