dvr and broadband

[Guest dustin charlton]

hi Fellas,

Need some advice, i am fitting a bosch/philips cctv system shortly. 5 cameras in all with a dvr6 on the end. Client wants remote access from their office. Will install phone point nearby. I understand how to use an external modem but broadband has been requested (as they have it in their offices). Is it just a case of signing up to a supplier and they just ring in from their pc as with a 56k? System will not be part of a network.

Any advice gratefully received.

Dustin.

[Rich]

What you will need to do is get them to sign up for a broadbean account, probably ADSL and then you will need an adsl modem, they usually come with RJ45 socket as standard so all you should have to do is connect it to the DVR, as long as the dvr is LAN/Remote accessable over TCP/IP and you have the remote software for the office PC.

Once the socket is broadband enabled and you have an account set up, connect your adsl modem which is connected to your DVR, you may want to use a computer to log into the modem to get the IP and to set it up properly.

Then in the office install the software on a PC that they intend to use and as long as they have access to the internet they will be able to access the DVR.

Next, Open up a huge can of worms.

You have to ensure that you can access the DVR you use via the internet. The DVR should really use a VPN from the remote software to use for transfering data, then that should be used on a secure connection with all firewalls in place and set up.

There should be no dialing up and the system should be accessable all the time, you might want to get the ip address of the office and set the adsl modem or whatever firewall your using to only accept incoming connections from the office IP.

[breff]

You will also have to request a static IP address as well from the ISP you use.

[Guest]

You will also have to request a static IP address as well from the ISP you use.

32045[/snapback]

Well, not quite. It does make things easier with a static IP but using a dynamic IP isn't too difficult if you can setup a VPN using FQDNs instead of IPs, although various OSes built in IPSEC policies don't - annoyingly. There are some routers that will let you do VPN with dynamic IPs.

[Guest dustin charlton]

Thanks for the advice guys, DVR is able to perform as you have advised- problem solved!! Many thanks. Dustin.

[jb-eye]

Well, not quite. It does make things easier with a static IP but using a dynamic IP isn't too difficult if you can setup a VPN using FQDNs instead of IPs, although various OSes built in IPSEC policies don't - annoyingly. There are some routers that will let you do VPN with dynamic IPs.

32052[/snapback]

So stay with fixed IP then and dont get involved with VPN on CCTV

Jef

[CompostCORNER]

So stay with fixed IP then and dont get involved with VPN on CCTV

Jef

32070[/snapback]

Dynamic IP's can be used although fixed are less stressful. This site here:- http://www.no-ip.com/services/page/free/dynamic/dns has a nice little free program that will generate a static hostname for a dynamic IP address PC so a CS or external computer can see the CCTV system thus be able to dial in. Or something like that. Works well on my installations. The free version gives you a 5 host limit but for a one-off payment of about £8, you can have unlimited hosts for life.

Also, if your CCTV system is PC based and suffers all the hassles that a home PC does, eg:- crashes/re-boots/gets thrown from it's internet connection, short of attending the site of the offending CCTV PC to re-connect to the internet everytime theres a problem, try this nice little program http://www.handyarchive.com/internet/dial-...1st-dialer.html as this will re-connect to a broadband connection if it's thrown, timed-out, or accidentally disconnected. It will even connect automatically to the internet as soon as a PC based DVR starts up. Only the line itself being killed will stop your connection. Quite handy?? Yes. Free too!

[Guest Adrian]

Can I make up a modem lead up that connects from the DVR to the network or rather the broadband line. that is over 25m from where the DVR is set up. its needed for remote access to the CCTV system.

Would cat 5 cable be ok to use.

Adrian B)

[Guest]

If you are making a lead for the line side of the modem then pretty much anything will do, as a minimum some decent quality CW1308 cable should be used so cat5 will be fine.

If it's for the modem to DVR link then that'll be a ethernet connection and should be in cat5e cable with the correct terminations on each end.

[CompostCORNER]

Don't you have to be within about 3 mtrs of the Broadband comms jack otherwise problems arise? Something to do with the filters maybe.