Ip address of NVR is 192.0.0.64, both side network reachable can ping also i can telnet to NVR.
NVR model is DS-7104N-SN
[root@dvrdvs /] # getHardInfo
Start at 2015-03-03 17:27:07
Serial NO :0420150116AARR498946575WCVU
V3.0.10 build 141128
KernelVersion: V1.0.0 build 140725
dspSoftVersion: V5.0...