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Trying to portforward - not first time - router reporting different public ip...


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#1 Birkes

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Posted 10 March 2017 - 02:58 PM

I've been trying to port forward - literally nothing is helping; I've done it before but now it seems impossible.
 
I have assigned the port to the correct local ip; but all port checking sites are saying it's not open.
The problem is: Every site, on my pc, on my tablet, on my phone - says the ip is 212.x...
BUT the router, 192.168.1.1 is in the status page reporting that the ip should be 100.xx.xx.51
 

Forbindelsestype: Automatisk konfiguration > DHCP
Internet-IP-adresse: 100.xx.xx.51
 
How can I fix this?
I don't have multiple routers; I have a linksys e2500, my ISP isn't blocking any ports and we have quite an expensive package; so I believe everything should be tip top...
 
What do?
 
EDIT:
I'm trying to portforward to local 192.168.1.103
I'm trying to open 25565, and 2302-5; everything is set correctly.
I'm trying to do so from a LAN pc; but the LAN pc reports the same public ip as other devices LAN aswell as Wireless.
 


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#2 ItsAllGeekToMe

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Posted 11 March 2017 - 03:16 AM

I would double check to make sure that the protocol is set for Both and that the External and Internal port match.  Sometimes UDP is selected when it should be TCP or Both.  Then of course place a checkmark by Enable.  Also, make sure that 192.168.1.103 does not have a firewall of its own blocking those ports.  A lot of times Windows Firewall can be on and possibly block something like this.

 

All devices will show the same public IP unless you are using a business plan where multiple static IP addresses were purchased.  That is why you port forward instead of NAT.  Since you only have one public IP, you need to forward which port(s) are to go to a specifc LAN IP.  If you have multiple static public IP addresses, you can NAT that IP and all of its ports can go to one LAN device.



#3 Birkes

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Posted 11 March 2017 - 08:33 AM

I would double check to make sure that the protocol is set for Both and that the External and Internal port match.  Sometimes UDP is selected when it should be TCP or Both.  Then of course place a checkmark by Enable.  Also, make sure that 192.168.1.103 does not have a firewall of its own blocking those ports.  A lot of times Windows Firewall can be on and possibly block something like this.

 

All devices will show the same public IP unless you are using a business plan where multiple static IP addresses were purchased.  That is why you port forward instead of NAT.  Since you only have one public IP, you need to forward which port(s) are to go to a specifc LAN IP.  If you have multiple static public IP addresses, you can NAT that IP and all of its ports can go to one LAN device.

 

TCP/UDP is set to both. I have the rule enabled. I do not use firewalls. I will quote my original post: 

 

 

"I've been trying to port forward - literally nothing is helping; I've done it before..."

 

The public IP shown on all of my devices does not match the IP on the router; quote:

 

 

The problem is: Every site, on my pc, on my tablet, on my phone - says the ip is 212.x...


#4 toofarnorth

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Posted 11 March 2017 - 02:10 PM

Hei

Please type this into a cmd prompt

tracert vg.no

Post the results. It will help diagnose what is happening :)

tfn



#5 Wand3r3r

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Posted 11 March 2017 - 04:54 PM

Interesting.  vg.no is a Norwegian web site yet 100.x.x.x. is in Massachusetts, United States

Peaked my curiosity as to why that site.



#6 toofarnorth

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Posted 11 March 2017 - 08:44 PM

 

 

Forbindelsestype: Automatisk konfiguration > DHCP

This is norwegian, no other reason than that ;)

tfn
 
 

 



#7 Birkes

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Posted 11 March 2017 - 09:52 PM

 

 

 

Forbindelsestype: Automatisk konfiguration > DHCP

This is norwegian, no other reason than that ;)

tfn
 
 

 

 

It's danish - but I will ping it anyway :^)



#8 Birkes

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Posted 11 March 2017 - 09:54 PM

 

 

 

Forbindelsestype: Automatisk konfiguration > DHCP

This is norwegian, no other reason than that ;)

tfn
 
 

 

 

I just did it. I don't know what here is sensitive information. Should I copy it all over?



#9 Wand3r3r

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Posted 12 March 2017 - 12:00 AM

Yes please.  Without we can't see if there is a private router between you and the public internet which would prevent you from port forwarding.



#10 Birkes

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Posted 12 March 2017 - 07:48 AM

Yes please.  Without we can't see if there is a private router between you and the public internet which would prevent you from port forwarding.

Tracing route to vg.no [195.88.54.16]
over a maximum of 30 hops:
 
  1    <1 ms    <1 ms    <1 ms  192.168.1.1
  2     1 ms     1 ms     1 ms  100.79.0.3
  3     4 ms     4 ms     4 ms  89.184.134.82
  4     4 ms     4 ms     4 ms  te0-6-0-6.koldg-cor01.link.stofa.net [212.10.15.164]
  5     4 ms     4 ms     4 ms  te0-2-0-21.koldt-br01.link.stofa.net [212.10.15.125]
  6     *        *        *     Request timed out.
  7     5 ms     5 ms     4 ms  D470841E.rev.sefiber.dk [212.112.132.30]
  8    26 ms     9 ms     9 ms  te0-7-0-9.koldt-cor01.link.stofa.net [178.155.254.192]
  9     9 ms    11 ms     9 ms  hu0-3-0-0.hrsk-cor01.link.stofa.net [178.155.254.179]
 10     9 ms     8 ms     8 ms  te0-3-0-7.hrsk-br01.link.stofa.net [212.10.13.200]
 11     9 ms     9 ms     9 ms  netnod-ix-ge-b-mmo-1500.bredband.com [195.69.117.158]
 12    19 ms    19 ms    18 ms  ti3003c400-ae1-0.ti.telenor.net [146.172.105.21]
 13    19 ms    18 ms    18 ms  ti0300c360-ae19-0.ti.telenor.net [146.172.99.246]
 14    18 ms    18 ms    18 ms  ti0001a400-ae1-0.ti.telenor.net [146.172.100.42]
 15    18 ms    18 ms    22 ms  xe-2-3-0.cr1-osl2.n.bitbit.net [62.92.230.2]
 16    19 ms    20 ms    19 ms  vlan-9.cs1-osl2.n.bitbit.net [87.238.62.87]
 17    21 ms    18 ms    20 ms  www.vg.no [195.88.54.16]
 
Trace complete.
 

Edited by Birkes, 12 March 2017 - 07:58 AM.


#11 Wand3r3r

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Posted 12 March 2017 - 01:49 PM

Interesting.  Please post a tracert yahoo.com and lets see if you get different results.

 

100.79.0.3 is not a public ip address but a private shared address space in the US.

https://db-ip.com/100.79.0.3

 

Then the first public ip you have Denmark at  89.184.134.82 and then 212.10.15.164

 

It would appear your ISP is preventing port forwarding.  They would need to forward all ports to your router for your port forwarding to work.  Port forwarding needs a public ip to forward from.

 

How about you give them a call and ask what is going on?



#12 toofarnorth

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Posted 12 March 2017 - 03:45 PM

This smells like carrier grade nat to me

https://en.wikipedia.org/wiki/Carrier-grade_NAT

Unfortunately it isnt uncommon these days since there is a lack of IPv4 addresses.

I would ask the ISP if they have a package where you get a permanent ip.
We have had to do this for a few of our customers employees where VPN to their workplace doesnt work

tfn



#13 toofarnorth

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Posted 12 March 2017 - 03:49 PM

If you are using stofa this is how to order a "permanent" ip
It will cost kr 29,- pr month

https://stofa.dk/kundeservice/spoergsmaal-til-bredbaand#open=true&tid-24=true&tid-16=true&nid-515=true

tfn


Edited by toofarnorth, 12 March 2017 - 04:05 PM.


#14 Birkes

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Posted 13 March 2017 - 04:21 PM

It seems I'm already paying for this "permanent", or static IP; however as you guys can tell I don't have it.

I will be contacting STOFA tomorrow - with all of this information, and I really appreciate your help!



#15 Wand3r3r

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Posted 14 March 2017 - 02:08 PM

To clarify you want a static PUBLIC ip address not a static CNAT PRIVATE ip address.






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