Quicksearch: Your search for b593 returned 33 results:
Huawei B593 4G-router dropping to 2G EDGE
Monday, September 2. 2013
My 4G-router drops to 2G EDGE after running couple of weeks. It's a really weird thing, since it does not do it always. Also the total on-line time is really weird. I hardly think that the on-line time can be 9 years or so.
I could not find any other remedy to fix this, but to reboot. After that it does a scan for connections and finds 4G/3G/2G and chooses the fastest one like it should do.
This is just a nuisance. I'd expect the box to be a little bit more robust.
The on-line time calculator -thing is a really weird one. It seems to jump 200 days during 8 hours when it feels like doing it. Apparently the entire calculator is busted.
Using the DMZ-setting of Huawei B593
Thursday, August 29. 2013
My previous post about my Huawei B593 4G-router has become quite popular, so I thought to tell more about my setup.
What I'd really need is a network bridge, so that my Linux-box would be the one getting a dynamically changing public IP via DHCP. Understandably it simply cannot be done with a mobile router. In UMTS-network, the mobile terminal will negotiate a data connection and get the IP-address associated with the connection. There literally is no chance for my router to do that via B593. Using an USB-based mobile terminal such a feat could be achieved, for example my Huawei E160 gets an IP-address directly to the Linux. No 4G LTE, though. So, I'll be sticking with my B593 for a while. See an example of a transfer speed measurement @ Ookla Speedtest.net. Not, bad huh?
I also did investigate if the box would be based on Linux. Huawei has some GPL-components in the firmware, but they don't release BusyBox nor Dropbear source. It is possible, that they are using something of their own make or simply don't have a prompt or are not using Linux at all. The reason I'd like to see them is that both BusyBox and Dropbear SSHd are very typically used in Linux-based hardware.
Doing a port-scan from LAN-side to B593 reveals, that it has something there:
Not shown: 995 closed ports
PORT STATE SERVICE
22/tcp filtered ssh
23/tcp filtered telnet
80/tcp open http
443/tcp open https
631/tcp filtered ipp
MAC Address: F8:3D:FF:F8:3D:FF (Huawei Technologies Co.)
... but since all the nice stuff (SSH and telnet) are filtered, I don't know if there are actually any services listening to those ports.
To repeat: to my understanding, a bridging firmware cannot be done. However, something very similar can be achieved, it has a DMZ-setting. See:
It says "You can configure a computer as the DMZ host that is exposed to the Internet so that unlimited services and exchanges are provided between the host and Internet, for example, online games and meetings." in the page. That is pretty much same as bridge.
I had to test if it really would work. I took a hping-utility for crafting raw IP-packets and ran:
hping -c 1 -n <-da-IP-address-here> -e "AAAA" -0 --ipproto 41
That sent a single (-c 1) raw IP-packet (-0) and stamped the outgoing packet a IPv6-encapsulation protocol (--ipproto 41). If the Huawei would have a simple UDP & TDP forwarding, such a packet would never pass trough.
On my Linux it said:
16:15:50.115851 IP sending.host.com > receiving.host.net: [|ip6]
16:15:50.115920 IP receiving.host.net > sending.host.com: ICMP host receiving.host.net unreachable - admin prohibited, length 32
Goddamn! It works! The packet properly passes trough.
My conclusion is that the DMZ-function is actually usable. Apparently there is no need for SSH-prompt -based configuration tweaking. It would always be nice, though. All Linux-nerds like me simply love to go to the prompt and type cat /proc/version and cat /proc/cpuinfo and boast about their hacking abilities to anybody who cares (not) to listen.
Huawei B593 4G-router SMS
Sunday, February 3. 2013
I got my hands on Huawei B593, punched in a SIM-card and turned the thing on. The admin is at http://192.168.1.1/ and admin password is admin like on many other devices, no surprises there.
Since my SIM is a pre-paid one which I use for testing and temporary Internet access, I simply wanted to see how much credit I had there. But wait! There is no Send SMS -functionality. I got the PDF-manual which said that there would be one. I think every 3G USB-stick software has that, why a 4G router wouldn't have the simple thing?
Little bit of Googling revealed that some telcos actually don't put it there. I did get my box from an independent reseller, but it looked like it was a Sonera (Telia) branded hardware. Little bit of more Googling ended me to one of their competitors, Saunalahti. From their customer support page, I got their firmware, uploaded it and noticed a number of drastic changes. Login screen was changed in to a generic Huawei one. After login my precious SMS-menu was there!
Yet another shame on you Sonera! Why did you leave the SMS-sending out. Idiots!
Update:
The login screen for the Saunalahti firmware version V100R001C260SP055 looks like this.
Update 2:
Most non-Finnish readers cannot read the telco's support-page. Download link for the firmware is http://www.elisa.fi/elisa/docimages/attachment/tuki/elisa_r+m+h+s.tar.bz2
Update 3:
There is an article about firmware from 3 Denmark.