I've observed an odd behavior from my V10 (H962). It appears to be attempting to send packets to the IPv4 address 192.190.109.178, with various source addresses (seems 21/8 is most common, but some from 30/8, 33/8 and 100/8 have also shown up).
This is rather odd behavior, normally very few processes would be allowed to send martian packets like that, but they're clearly showing up. If you've got a Linux router, running `sysctl -w net/ipv4/conf/all/log_martians=1` will cause it to log such packets.
Anyone else observed a V10 generating such packets, or am I the whacky one for having network monitoring on my home network that is set to alert me to these?
http://bgp.he.net/net/192.190.109.0/24 perhaps the modem chip manufacturer is taking anonymous data?
Sent from my LG-H962 using Tapatalk
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This morning I was confronted with something weird. My phone all of a sudden could not connect to a remote VPS server via POP3. It would just say No Connection.
The same phone however could connect to everything else, including other services on the same remote server. And, it could connect to other servers using POP3. If I switched to WiFi, it then connected just fine.
Drove me nuts trying to figure out what the issue.
Obvious things were checked, firewall, pop3 server etc... to no avail...
So finally, I figured that Verizon was having some weird 4G problem related to port 110.. I had the POP3 server, listen on a secondary port... Still nada...
While looking at the POP3 Server configs, I saw that they now had support for ipv6, but that by default it didn't listen to them. So I changed the configuration and bang.... the phone connected...
It was apparently trying to connect to ipv6 since the time I found it was failing.
Wonder if anyone has run into this.... Looking at the logs, my phone is the ONLY device connecting via ipv6, everything else is using ipv4.
Well this turned out to be pretty simple.
IF you publish an AAAA record for a host, and you are using Verizon 4G, it will use the AAAA entry for the host in liu of the AA record.
In my case, this had surprising results that once I figured it out made sense, but at the time caused a lot of confusion as to what was the trigger for the action that was taking place.
krelvinaz said:
Well this turned out to be pretty simple.
IF you publish an AAAA record for a host, and you are using Verizon 4G, it will use the AAAA entry for the host in liu of the AA record.
In my case, this had surprising results that once I figured it out made sense, but at the time caused a lot of confusion as to what was the trigger for the action that was taking place.
Click to expand...
Click to collapse
Yes.. you learned the hard way that LTE was rolled out with native IPv6 (and preferred stack too). Pretty smart to setup a new network using IPv6 and save us the headaches of upgrading later after the fact...
I've noticed that the WiFi MAC address on my OG has been changing periodically. I first started noticing it on Monday when I was running the Team Nocturnal ROM. Since then I've done a factory reset and now I'm running The Base 0.7.3 and it's still occurring . The first 6 digits of the address are always "00:11:22" and the last 6 seem to be random. I grepped through the /system partition and the only reference to "00:11:22" was in an example config file, so I'm sort of stumped.
My guess is the MAC address is defined by the kernel somewhere? I'm using the freegee 0.5 kernel (3.0.21) . I'm going to try flashing KernelSk8 soon, I'll post my results. Has anyone else noticed this?
Thanks!
AFAIK, MAC address shouldn't change. The first 6 digits of the MAC are supposed to identify the manufacturer of the device - in our case A8:16:B2 = LG Electronics.
You can spoof it, but shouldn't need to. I have no idea why yours would be changing - there shouldn't be a need to.
Yea, I know it shouldn't change, which is why it's an issue At work I have to register my MAC address with the WiFi router in order to get access to the network.
I flashed sk8's kernel and I still have the same issue. I did a little more poking around and it seems to set the MAC address on startup. Does anyone know where the MAC address is set? I thought it was in the kernel but apparently not.
Thanks!
From what I can tell, this is a not-uncommon side effect of installing third-party ROMs on the phone. The last half of the the address gets randomized every time you reboot. This started happening to me after a Nexus 4 conversion -- and it remained even after re-installing the stock ROM.
On the other hand, restricting network access my MAC address isn't that secure. You're better off with a strong password and WPA2 with 256-bit encryption. Your workplace may require MAC filtering, however.
MZille said:
From what I can tell, this is a not-uncommon side effect of installing third-party ROMs on the phone. The last half of the the address gets randomized every time you reboot. This started happening to me after a Nexus 4 conversion -- and it remained even after re-installing the stock ROM.
On the other hand, restricting network access my MAC address isn't that secure. You're better off with a strong password and WPA2 with 256-bit encryption. Your workplace may require MAC filtering, however.
Click to expand...
Click to collapse
Thanks for the reply. It's good to know that I'm not the only person having this problem. This must be another undocumented side effect of the Nexus 4 conversion. You're right, it's my work that requires me to register my MAC address. It's really annoying to have to register the device everyday, and if I forget then my email doesn't come through.
Is there anyone that can give me any hints on where the MAC address might be (re)assigned? Or even what android OS system utilities might be used to change the address?
I can find a bunch of Google results for spoofing and changing MAC addresses, but discussion of *preventing* alteration is hard to find. You can apparently use Busybox to set whatever MAC address you like, but it's not clear if the phone retains this setting if it gets rebooted. I'd check right now, but I'm in the middle of a Titanium backup.
Edit: I imagine that you can create a shell script to automate changing the address whenever you need to.
Hi,
I know this is kind of old thread but i am having this issue of MAC address changing on every reboot after installing Candy 5, can someone please point me to a solution. ( its a problem for me as i have to register my MAC at workplace and everyday its changing and causing issues with my work network connection )
Any help would be appreciated.
MZille said:
I can find a bunch of Google results for spoofing and changing MAC addresses, but discussion of *preventing* alteration is hard to find. You can apparently use Busybox to set whatever MAC address you like, but it's not clear if the phone retains this setting if it gets rebooted. I'd check right now, but I'm in the middle of a Titanium backup.
Edit: I imagine that you can create a shell script to automate changing the address whenever you need to.
Click to expand...
Click to collapse
by looking at iptables log, i can see hundreds of ICMP connections to my wifi router every time i connect my android phone on the wifi.
always at a random port.
:16662
:43999
:52484
:32994
:5737 (lowest)
etc
what is that?
Edit:
i'm now blocking everyting on AFWALL and seeing what it logs.
it logs the above connections as coming from:
AppID: -11
App name: (Kernel) - Linux kernel
any ideas what this is about?
Hi,
when my G5 (H850) has booted every thing works as expected for about 1/2 to 1 hour. At first I've noticed that PlayStore did not load some and then no pictures but installing (downloading) apps still worked. All browsers (FF, Chrome, etc.) stop working. No connection. Twitter does not load pictures. After an unspecified time (from about 5 minutes to 1-2 hours up to 12 or more hours) everything works again just to stop working after a while. When I reboot every thing works immediately.
My network is IPv4/IPv6 dual stack. Perhaps this is a side effect of my dual stack set up. Are there any known problems with IPv6 (and/or dual stack, WIFI) on the G5?
As a test I will create a separate VLAN and SSID with IPv4 only just to find out if IPv6 is the problem. If I find IPv6 is the problem the next question is if the G5 has IPv6 issues or my network set up is faulty. The second option seems to be unlikely IMHO as all other devices (computers, Samsung tablets and phones, LG tablets and phones, iPhones) work as expected.
Any hints and suggestions welcome.
TIA
IPv6 causes issues in a LOT of cases in my experience, and not with any specific device. I've given up and just disabled it on my whole home network. It's the networking of the future and the future is not today
Pretty strange statement for 2016 after about 20 years IPv6. IETF stated that when they talk about IP then IPv6 is ment and IPv4 is no longer actively worked on. There is no alternative to IPv6.
Sent from my LG-H850 using XDA-Developers mobile app
Samsung Galaxy S10e, Android 10 stock.
I am currently a patient at an acute care facility and I use the public Wi-Fi here. Recently, changes were made to the Wi-Fi here, I understand that a new router was installed. Since then, I have been trying to access the Wi-Fi with the correct password, but I get a message that sign in is required and when I click it, I am forwarded to a page that does not load. If I select the menu option to use network as is, I seem to be connected but have no access.
In the past, when accessing this Wi-Fi, I was forwarded to a web page where I had to click a button, and then got access. That page has been gone for quite some time now and the Wi-Fi connected without any issues
Others accessing the Wi-Fi do not seem to have this issue. I tried numerous things to fix this issue, such as deleting the Wi-Fi connection and re-enabling it and resetting the network connection. The only thing that I found that resolves this issue is turning off the randomization of the MAC address and setting it to use the phone Mac address.
For privacy reasons, I would prefer to use the randomized MAC address. If for some reason my phone is being blocked on this network, which is the only thing I can think of, in my limited knowledge of how this works, it would seem my phone Mac address would it be blocked but not a randomized MAC address, because it changes.
My old Galaxy S4 running CyanogenMod Android 6 connects to the Wi-Fi fine, but I don't believe the MAC address is randomized on Android 6, if this is the reason, though this seems unlikely to me as every newer phone would have an issue, since they randomize the MAC address by default
Can anyone supply me any info on this?
@rsngfrce
If the randomized MAC address ( e.g. 32:8c:27:26:72:34 ) doesn't contain the original OEM code in its first 6 hex-numbers you might face a lot of authentication issue.
jwoegerbauer said:
@rsngfrce
If the randomized MAC address ( e.g. 32:8c:27:26:72:34 ) doesn't contain the original OEM code in its first 6 hex-numbers you might face a lot of authentication issue.
Click to expand...
Click to collapse
Thanks for your reply. The phone is doing the randomizing as a function of Android and I would have to assume that it would maintain the original OEM code in its first six hex-numbers if this is required (and I have read about that issue). I never had this issue until the new router was installed and I am unaware of anyone else having an issue.