General Discussion
  >> Mobile Broadband (3G, 4G, 5G etc)


Register (or login) on our website and you will not see this ad.


  Print Thread
Standard User AlistairS
(member) Wed 20-Feb-19 06:14:24
Print Post

Huawei B525s-65a port forwarding issues


[link to this post]
 
Moved home recently and decided to use 4G for my home broadband. Its connecting OK but I'm getting nowhere trying to port forward to allow the likes of emby and plex servers to function outside my LAN.

Does anyone have any experience of this type of setup that can help?

I am setting up what I think is correct in the virtual servers settings but when I try to check if the ports are open they are always closed. I have tried this on both linux a windows for the last 10 days.

Any fixes greatly appreciated
Standard User jchamier
(eat-sleep-adslguide) Wed 20-Feb-19 18:26:31
Print Post

Re: Huawei B525s-65a port forwarding issues


[re: AlistairS] [link to this post]
 
Your mobile provider is probably doing carrier grade NAT, which is essentially the same as being behind an additional router that you cannot set up any port forwarding on.

If you are on EE using IPv4 that is the case, with IPv6 you may not have an issue. Other networks are different (Three, Vodafone, O2 etc).

This thread may help and describes an option one poster took:
http://forums.thinkbroadband.com/mobilebroadband/f/4...

plusnet 80/20 (2/jun/14) at 470m - Sync highest was 61/8 now 54/6
20 years of broadband from 1999's ntl:cable modem trial - Live BQM

Standard User AlistairS
(member) Wed 20-Feb-19 18:28:12
Print Post

Re: Huawei B525s-65a port forwarding issues


[re: jchamier] [link to this post]
 
Thanks I'm on VM which is EE of course


Register (or login) on our website and you will not see this ad.

Standard User XRaySpeX
(eat-sleep-adslguide) Wed 20-Feb-19 20:20:38
Print Post

Re: Huawei B525s-65a port forwarding issues


[re: AlistairS] [link to this post]
 
It is probable that you are up against a limitation of EE's mobile network. The EE mobile network uses Carrier Grade NAT (CGNAT), which means that you don't get your own public IP address but share it with other users. So you can't be uniquely id'ed on the Net & therefore your LAN cannot be addressed from outside for unsolicited accesses. This is unlike fixed BB.

Just on the off-chance can you set the APN Protocol to IPv4 only in your router's APN/Profile? This may get round it. I don't understand why this is so.

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 20 Meg WBC
Standard User AlistairS
(member) Wed 20-Feb-19 20:32:16
Print Post

Re: Huawei B525s-65a port forwarding issues


[re: XRaySpeX] [link to this post]
 
Will give that a go
Standard User jchamier
(eat-sleep-adslguide) Wed 20-Feb-19 21:37:51
Print Post

Re: Huawei B525s-65a port forwarding issues


[re: XRaySpeX] [link to this post]
 
Not just EE, but O2 and Vodafone similarly. Three has two APNs, one of which may remove CGNAT.

The problem is all ISPs will have eventually, there are no IPv4 addresses left. So to have an internet connection, at some point an IPv4 address has to be shared. The same as your home router does sharing an IP, it has to be done in the network, sharing an IP with lots of customers.

The only solution is IPv6 which EE contract customers get, but it is not clear if this is available to VM or any other MVNO.

plusnet 80/20 (2/jun/14) at 470m - Sync highest was 61/8 now 54/6
20 years of broadband from 1999's ntl:cable modem trial - Live BQM

Standard User XRaySpeX
(eat-sleep-adslguide) Wed 20-Feb-19 21:53:52
Print Post

Re: Huawei B525s-65a port forwarding issues


[re: jchamier] [link to this post]
 
Yes, I was just addressing the OP who is on VM who piggy-back on EE.

Dealing with EE mobile router users it appears to me that it used to work when the EE mobile network was IPv4 but stopped working when EE switched to IPv6. Hence my suggestion to amend the APN to IPV4 Only if at all possible. Some such users have confirmed that this works for them.

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 20 Meg WBC
Standard User jchamier
(eat-sleep-adslguide) Wed 20-Feb-19 21:59:15
Print Post

Re: Huawei B525s-65a port forwarding issues


[re: XRaySpeX] [link to this post]
 
Setting to IPv4 means on EE (and I don't think VM use the same core network anymore) does not solve the CGNAT problem. It might solve other problems.

"Piggy back" may be too simplistic. An MVNO of the size of VM (Virgin Mobile) are capable of running their own core, and only buying radio access network from EE (BT plc).

It is not the same as 'branding' which many smaller MVNOs are doing.

plusnet 80/20 (2/jun/14) at 470m - Sync highest was 61/8 now 54/6
20 years of broadband from 1999's ntl:cable modem trial - Live BQM

Edited by jchamier (Wed 20-Feb-19 22:00:38)

  Print Thread

Jump to