SADP doesn't find NVR?

[pdampier]

Hi,

I currently have my 6 Hikvision cameras plugged directly into the POE ports on my Hikvision K series NVR. I'm planning to move these cameras to a separate POE switch so I can move the NVR location.

I prep for this I installed SADP tool and ran it but it doesn't find anything. I wouldn't expect it to find the cameras since they're still attached to the NVR's POE ports and thus on a different LAN address range. However my PC and NVR are on the same exact 192.168.1.x range. Shouldn't SADP find the NVR?

 

[Phil]

Yes, it should.
Are you perhaps running SADP on a wireless laptop?
Sometimes that can cause issues - try connecting it to your router with a patch lead as a test.

Or perhaps your Firewall / Anti-Virus is inhibiting the SADP scan?
Test it with your shields temporarily down.

 

[sportster]

To add what Phil has suggested:

1. SADP (like any scanner program) only works for devices within the same Broadcast Domain / VLAN
2. SADP performs a multicast broadcast using the 239.255.255.xxx network
3. Some routers (e.g. home routers) block "multicast" packets, by default. It may be worthwhile to have a look at your router config, and "enable" Multicast packets (if it's disabled).
4. if you're still striking out, you can try some Freeware like "Advanced IP Scanner". It'll scan your 192.168.xx.yy network.
   • Advanced IP Scanner - Download Free Network Scanner (looks like direct links are blocked...... just Google it, then. Or maybe not. Lol !))

 

[sportster]

And if one really wants to get into the weeds on this:

• SSH into the NVR and run the command --> netstat -an

Output should include the "noted" line below. If it does, the NVR is listening & should respond to SADP. If the line is not there, NVR won't respond to SADP. (same technique applies to IP cameras as well)

# netstat -an
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.1:7002 0.0.0.0:* LISTEN
tcp 0 0 10.10.10.200:43356 10.10.10.202:554 ESTABLISHED
tcp 0 0 10.10.10.200:22 192.168.2.100:44939 ESTABLISHED
tcp 0 0 10.10.10.200:43358 10.10.10.202:554 ESTABLISHED
tcp 0 0 10.10.10.200:44104 10.10.10.201:8000 ESTABLISHED
tcp 0 0 10.10.10.200:47386 10.10.10.201:554 ESTABLISHED
tcp 0 0 10.10.10.200:47390 10.10.10.201:554 ESTABLISHED
tcp 0 0 10.10.10.200:35022 10.10.10.202:8000 ESTABLISHED
tcp 0 0 :::22 :::* LISTEN
tcp 0 0 :::80 :::* LISTEN
...... some lines removed .......
udp 0 0 239.255.255.250:37020 0.0.0.0:* <-- NVR listening for a SADP request
...... a lot of lines removed .......