Your questions lead me to believe you are not a networking wizard and today the entire reason for that service is for those that don't want to learn networking.
In your case, don't buy.
Hi There I recently posted a message ref wireless webcams remote viewing for monitoring my mother who is very frail.
I am considering buying a Linksys Wireless N router Model WRT350N-UK and also for compatibility a Linksys wireless ip webcam models WVC200 2.4Ghz or WVC54GCA. They both seem to tell me they do what I require of them. I have been reading the PDF manuals and the WVC200 has the option of subscribing to a service called Sololinktm DDNS service and the WVC54GCA offers me the option of subscribing to a service called Intamac monitoring service. What my questions are
1) Will I be able to view my camera remotely without subscribing to one of these services and if I can will it be difficult to set up without one of these services.
2) Is there a free service like these and if there is would it be more difficult to set up using the free service
3) I have also read that I will need to use port forwarding what is this and is it easy to set up.
4) How do I know what ports I have on my computer.
Many Thanks To All Who Try to answer these Questions.