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Remote Access B535

hackinate

Casual Member
I have searched through various threads and haven't been able to find any solutions, although the issue is mentioned.

I have a B535 connected to 4G on three. Using APN 3internet I get a real IP each time. Am able to port forward successfully - have FTP server and camera set up with remote access. (Using DDNS)

What I cannot do is access the router externally - port forwarding / DMZ doesn't work for the router IP.

I am not planning to run any computer behind the router that would make VPN an option - any thoughts / suggestions appreciated.

Thanks in advance
 
Have you tried turning off the firewall?
If that doesn't work you will need some sort of "actor" on the inside, perhaps an old RaspberryPi tucked away somewhere.
 
Yes, I did try turning the firewall off but it didn't help - it seems it only operates on the IP addresses within DHCP range - and the router IP cannot be set into its own range.
I find it amazing that Huawei haven't built in some switchable access feature - I have asked them direct, but so far only an acknowledgement, no answer.
I was hoping to avoid having to put any active source - although I have a raspberryPi which I could use.

Unfortunately, the B535 appears to be locked down - certainly no ssh/rlogin/etc access that I can find.

Hopefully someone else may have come across the same problem and found an alternative method.
 
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Do you mean you want to be able to access the router UI from the WAN side, rather than the LAN? That feels like an unusual thing to do and I could easily see the reason why that would be disallowed as it would have potential to open up a large attack surface for hackers to attempt to compromise.

I guess if you really want to do that then you're better of setting up your own VPN server inside your network and VPN into it, then once connected to your VPN browse the router UI as you normally would on your LAN.
 
Yes, the router is located several hours from where I live - and I want the ability to log on to it from the WAN side in case of any issues. Naturally this is blocked by default as it would open up a potential security weakness for the unwary.
However many other routers (including for example Draytek) have an option to allow WAN access either with a secure key or password - with IP restriction where higher security is needed.

I am trying to avoid setting up a VPN server inside the network - although I may end up doing so with a raspberryPi if there is no other possibility.

Just hoping that someone had found a simpler solution - possibly modified firmware - to enable remote (WAN) access.
 
It’s a very simple consumer router - it doesn’t have those kind of firewall rule settings to modify.

You can achieve what you want by connecting in to another device via zerotier or wireguard
 
THanks for the suggestions - but having had a quick look - I cannot see how zerotier or wireguard would be suitable?
I have a B535 4G router, behind which is a camera. If necessary I want to be able to log into the router from WAN, to adjust its settings (and potentially those of the camera).
I can achieve this, if I have to, by running a VPN on a raspberryPi behind the router. No plans or intention to run anything else.
Am I correct that neither zerotier nor wireguard would add anything, or am I missing something?
 
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THanks for the suggestions - but having had a quick look - I cannot see how zerotier or wireguard would be suitable?
I have a B535 4G router, behind which is a camera. If necessary I want to be able to log into the router from WAN, to adjust its settings (and potentially those of the camera).
I can achieve this, if I have to, by running a VPN on a raspberryPi behind the router. No plans or intention to run anything else.
Am I correct that neither zerotier nor wireguard would add anything, or am I missing something?
ZeroTier or Wireguard would require an always on computer, RaspberryPi etc or similar to be behind the router also.

A RaspberryPi is a very small investment though to add such a solution. Even one of the older generation ones would suit this purpose just fine. Then all you'd need to do to access it remotely would be to turn on zerotier for example from elsewhere and you'd have local network access.
 
ZeroTier sounds like something handy to have if behind CGNAT, especially as it can broker the tunnel for you. With actual public IPs (ie no CGNAT) though it's worth cutting it as middleman and use openvpn, wireguard or even old pptp directly on the Rpi.
 
Thanks for the suggestions. I already have an Rpi and have run it as VPN to confirm proof of concept. Still hoping (probably optimistically) that Huawei or someone will find a way to open up B535 for external access - as this would be simplest.
 
If the Pi is behind CGNAT on the router though I'm not sure, unless you used zerotier or an external VPS running a VPN, how you'd facilitate remote access. If you use OpenVPN - what is the Pi going to be connecting to?

I think ZeroTier is pretty much the only solution that's going to work in your situation.
 
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