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#1
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port forwarding question
I have port forwarded several applications on my PC, which is connected by
wire to the router. The PC has a static internal IP address. With my notebook I always log in thru wifi. Now I recently installed Skype on the notebook and I had to forward a port for this. Does this mean that I have to give the notebook a static IP aswell? I'm planning to install Skype on the PC too, does this require an additional rule? -- regards, |\ /| | \/ |@rk \../ \/os |
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#2
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port forwarding question
Linea Recta wrote:
I have port forwarded several applications on my PC, which is connected by wire to the router. The PC has a static internal IP address. With my notebook I always log in thru wifi. Now I recently installed Skype on the notebook and I had to forward a port for this. Does this mean that I have to give the notebook a static IP aswell? I'm planning to install Skype on the PC too, does this require an additional rule? "Any PC whose port is being forwarded must have its DHCP client function disabled and must have a new static IP address assigned to it because its IP address may change when using the DHCP function." One can probably get away with not assigning a static IP address to a computer that is always on and always attached to the router (except, perhaps, for brief intervals such as power outages and the like) because such a computer will most likely continue to receive the same IP address from the router's DHCP server, particularly if the computer re-connects to the router before the next expiration of the IP address lease. Furthermore, some DHCP servers use "automatic allocation" (sometimes called DHCP reservation) in which an IP address is "permanently" assigned to a particular computer (identified by its MAC address). See, e.g., this thread: http://forums.linksysbycisco.com/lin...hread.id=81638 OTOH, a computer that frequently is removed from the network, like a notebook, could easily receive a different IP address each time it connects to the router if the computer is set to obtain an IP address automatically (assuming the router doesn't support DHCP reservation). -- Lem Apollo 11 - 40 years ago: http://www.nasa.gov/mission_pages/ap...0th/index.html |
#3
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port forwarding question
"Linea Recta" wrote in
: I have port forwarded several applications on my PC, which is connected by wire to the router. The PC has a static internal IP address. With my notebook I always log in thru wifi. Now I recently installed Skype on the notebook and I had to forward a port for this. Does this mean that I have to give the notebook a static IP aswell? I'm planning to install Skype on the PC too, does this require an additional rule? To be dependable, yes, you should assign a static IP. However if the laptop moves around, this can be extremely inconvenient. As Lem mentioned, the best solution is to purchase a router that has the "DHCP Reservation" feature. (Also known as "Static DHCP Assignment", "Static DHCP", "IP reservation", or "MAC/IP binding"). This allows your machine to still use DHCP for moving around but when connecting to your home router, the router will always assign the same IP address to that machine. Problem solved. HTH, John |
#4
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port forwarding question
On Feb 12, 7:36*pm, "Linea Recta" wrote:
I have port forwarded several applications on my PC, which is connected by wire to the router. The PC has a static internal IP address. With my notebook I always log in thru wifi. Now I recently installed Skype on the notebook and I had to forward a port for this. Does this mean that I have to give the notebook a static IP aswell? I'm planning to install Skype on the PC too, does this require an additional rule? -- regards, |\ */| | \/ |@rk *\../ * \/os I have set up a few Skype set ups on different routers / network and never requires a port forward rule. You are connecting to a Skype "service" which then "re-directs" to your account / your destination account. |
#5
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port forwarding question
-------- Original-Nachricht -------- I have port forwarded several applications on my PC, which is connected by wire to the router. The PC has a static internal IP address. With my notebook I always log in thru wifi. Now I recently installed Skype on the notebook and I had to forward a port for this. Does this mean that I have to give the notebook a static IP aswell? I'm planning to install Skype on the PC too, does this require an additional rule? As I understand how Skype works from this article, port forwarding isn't necessary for Skype http://www.h-online.com/security/fea...ls-747197.html Bernd |
#6
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port forwarding question
Hi
I am not sure that Skype needs a port forwarding. However you should that a port is forwarded toward a specific IP That means that the same port can not be opened toward more than one computer (one IP). The way to overcome this limitation is to assign the application in question different port on each computer. As an example using Remote Desktop on few computers that are on the same network, necessitates changing the Remote Desktop listening port. Check Skype's support for specific information about Skype concerning this issue. Jack (MS, MVP-Networking). "Linea Recta" wrote in message ... I have port forwarded several applications on my PC, which is connected by wire to the router. The PC has a static internal IP address. With my notebook I always log in thru wifi. Now I recently installed Skype on the notebook and I had to forward a port for this. Does this mean that I have to give the notebook a static IP aswell? I'm planning to install Skype on the PC too, does this require an additional rule? -- regards, |\ /| | \/ |@rk \../ \/os |
#7
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port forwarding question
"smlunatick" schreef in bericht
... On Feb 12, 7:36 pm, "Linea Recta" wrote: I have port forwarded several applications on my PC, which is connected by wire to the router. The PC has a static internal IP address. With my notebook I always log in thru wifi. Now I recently installed Skype on the notebook and I had to forward a port for this. Does this mean that I have to give the notebook a static IP aswell? I'm planning to install Skype on the PC too, does this require an additional rule? -- regards, |\ /| | \/ |@rk \../ \/os I have set up a few Skype set ups on different routers / network and never requires a port forward rule. You are connecting to a Skype "service" which then "re-directs" to your account / your destination account. ---END QUOTE--- I understood it needs port forwarding 'for incomming connections' from following link: http://www.portforward.com/english/r...-174/Skype.htm -- regards, |\ /| | \/ |@rk \../ \/os |
#8
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port forwarding question
Linea Recta wrote:
"smlunatick" schreef in bericht ... On Feb 12, 7:36 pm, "Linea Recta" wrote: I have port forwarded several applications on my PC, which is connected by wire to the router. The PC has a static internal IP address. With my notebook I always log in thru wifi. Now I recently installed Skype on the notebook and I had to forward a port for this. Does this mean that I have to give the notebook a static IP aswell? I'm planning to install Skype on the PC too, does this require an additional rule? -- regards, |\ /| | \/ |@rk \../ \/os I have set up a few Skype set ups on different routers / network and never requires a port forward rule. You are connecting to a Skype "service" which then "re-directs" to your account / your destination account. ---END QUOTE--- I understood it needs port forwarding 'for incomming connections' from following link: http://www.portforward.com/english/r...-174/Skype.htm I can't recall doing it, but my router is in fact set to forward both UDP and TCP traffic to Skype through a particular port. Port forwarding appears to be a suggestion rather than a requirement for Skype. This is the only mention of port forwarding I found on the Skype site: Quote In the quest for even better voice quality, it is also advisable to open up incoming TCP and/or UDP to the specific port you see in Skype Options. This port is chosen randomly when you install Skype. In the case of firewalls, this should be easy to arrange. In some routers, however, you cannot configure incoming UDP at all (but you still can configure incoming TCP port forwarding, which you could/should do). /Quote https://support.skype.com/faq/FA148/...q=port+forward -- Lem Apollo 11 - 40 years ago: http://www.nasa.gov/mission_pages/ap...0th/index.html |
#9
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port forwarding question
"Lem" lemp40@unknownhost schreef in bericht
... Linea Recta wrote: "smlunatick" schreef in bericht ... On Feb 12, 7:36 pm, "Linea Recta" wrote: I have port forwarded several applications on my PC, which is connected by wire to the router. The PC has a static internal IP address. With my notebook I always log in thru wifi. Now I recently installed Skype on the notebook and I had to forward a port for this. Does this mean that I have to give the notebook a static IP aswell? I'm planning to install Skype on the PC too, does this require an additional rule? -- regards, |\ /| | \/ |@rk \../ \/os I have set up a few Skype set ups on different routers / network and never requires a port forward rule. You are connecting to a Skype "service" which then "re-directs" to your account / your destination account. ---END QUOTE--- I understood it needs port forwarding 'for incomming connections' from following link: http://www.portforward.com/english/r...-174/Skype.htm I can't recall doing it, but my router is in fact set to forward both UDP and TCP traffic to Skype through a particular port. Port forwarding appears to be a suggestion rather than a requirement for Skype. This is the only mention of port forwarding I found on the Skype site: Quote In the quest for even better voice quality, it is also advisable to open up incoming TCP and/or UDP to the specific port you see in Skype Options. This port is chosen randomly when you install Skype. In the case of firewalls, this should be easy to arrange. In some routers, however, you cannot configure incoming UDP at all (but you still can configure incoming TCP port forwarding, which you could/should do). /Quote https://support.skype.com/faq/FA148/...q=port+forward -- Yes, I suppose that increases bandwidth capacity. I will need it, especially since I want to use video stream too. I'll have to figure out if my router supports DHCP reservations. This may be important for other applications in future on the notebook. Thanks very much for your replies. -- regards, |\ /| | \/ |@rk \../ \/os |
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