Hello:
I have an ip camera in my house and I see the image from my office with its public ip and the port.
For example: http://65.55.85.150:8500. (public ip is fixed)
Is it possible to create a NAT rule that passes the ip of the camera an ip of my local network?
For example:
Home 65.55.85.150:8500 (NAT to) 192.168.1.140:8500 office.
The reason is that my DVR camera recorder only detects intranet cameras or cameras that are connected to the router.
Your explanation is not clear, perhaps some diagrams would help.
What is not clear…
- where the office is located (home or work)?
- if the camera is located at home do you have a block of IPs from your provider (use one of them just for the camera)
_ It seems you cannot deploy the dvr recorder on the same network as the IP camera and thus you want to move the IP camera to the home network system?
In general it is very easy to give an ip camera at home an IP on the home LAN or any VLAN you create (static is best so it doesnt change on you and can be assigned firewall and nat rules).
If you wish to view the camera from an external WAN you will need firewall rule to allow port forwarded traffic into the router.
If you know the WANIP(s) wishing to view the camera create a source address list as this limits access appropriately
If you are wishing to view the camera from an external WANIP, ensure there is adequate security (https type connection best with password etc…)
I would recommend putting the ip camera and the dVR on their own vlan and then you can create a firewall rule from your PC accessing both devices.
I have 2 ip cameras in my office and a dvr in the office. I see and record in my office dvr the 2 IP cameras.
But I want to record the IP camera of my house in the office dvr, but dvr does not recognize the home IP camera as it is not in the same office network.
I see the home camera in the office using the browser https //: xxxxx: xxx
At home the router is mikrotik, and in the office too.
I tried with a nat rule in the office tried to change the source ip (house camera 65.65.65.25:7200) to a local destination ip in the office (192.168.1.150: 7200).
But I am not able.
You can setup an EOIP tunnel between office and home and access camera on dvr via via the tunnel
Ahh okay two physical locations - above my pay grade.
CZFAN is probably spot on, the question I have is EOIP such that the house VLAN with IP camera or Office VLAN with DVR and two IP cameras is the DHCP serving side of the EOIP tunnel??
Last time I checked there were several ways to setup an EOIP tunnel and perhaps some guidance on the most appropriate approach would be useful.
A. would want a secure EOIP tunnel
B. easy to setup and maintain
C. allow the OP to record the home camera on the office DVR.
Since I am CZFans agent, I get a small commission 
I did not know this tunnel.
Eiop I see that it is not encrypted but can be encrypted.
I have firewall rules I will look at how it affects.
Regards
From my limited knowledge its a really cool and easy way to add two separate locations and make one of them ‘part of the others LAN’.
EOIP… Its like stretching a long cable between 2 tiks. EVERYTHING goes across it.