20 replies to this topic

[Adrena]

Hi!

Please forgive me if the thread was discussed.

Last update on 15/01/2019, in network settings, when DHCP is off, after restarting the tuner or restarting the network, the software sets the network(LAN) always to OFF.

Regards.

 

[Adrena]

In the update the problem has disappeared.

However, the next one appeared.

With DHCP disabled, both in PLi 6.2 and 7.0 in some way after turning off the deep stand by the ethernet port on the router is blocked, it only helps reset the router. when the cable is connect to the next socket on the router, it also works for some time, and then blocks another port on the router. Connecting a computer to this ports confirms their blocking. No LAN & WAN.

In the image other groups(example OpenATV), the problem does not exist.

Regards!

Edited by Adrena, 2 February 2019 - 09:55.

[WanWizard]

How can a switch port be blocked? What router is that?

[Adrena]

" - How can you block the switch port? "

This is the question.

Nokia G-240W-C

I still have another, cable router, and I can check on it, but as I said in the OpenATV problen does not exist.

[Pr2]

How can a switch port be blocked? What router is that?

 

A switch with packet storm prevention enabled, if the STB start sending too many packets abnormal packets to saturate the network the switch will block the port.

[WanWizard]

There is nothing in OpenPLi that is different. The hardware is the same, the drivers are supplied by Zgemma, the ethernet stack is Linux. Identical in OpenATV.

[WanWizard]

A switch with packet storm prevention enabled, if the STB start sending too many packets abnormal packets to saturate the network the switch will block the port.

 

Possible. There are more options, but I still have to see a "2-bit" home router with such features.

[Adrena]

It is true that this was not a problem in previous OpenPLi releases.

The problem appeared now and existence in the latest releases.

I suspect that @Pr2 is right and there may be a problem with the IPTV plugin. It is also true that in OpenPLi the content of IPTV was loaded the fastest, the image of other groups with such a speed could only dream.

I will check without installing the IPTV plugin

Thank you for your help.

Regards!

[Erik Slagter]

Possible. There are more options, but I still have to see a "2-bit" home router with such features.

Actually some $0.02 unmanaged switches have this feature, but totally non-configurable, so it's a PITA in the end.

 

I guess we don't send STP BPDU's in OpenPLi 

[WanWizard]

I wasn't referring to BPDU's, but no, I doubt that.

[Erik Slagter]

I wasn't referring to BPDU's, but no, I doubt that.

Me neither.

[Pr2]

OpenPLi is just performing some ping from time to time...

[Adrena]

Today, in the new multiboot partition, I installed clean OpenPLi 7.0 from 2019.02.04. without IPTV plugin.

Since my last post, the box has worked on OpenATV with the IPTV plugin without any problems.

After starting the new partition with OpenPLi after 3 minutes, the router port was blocked.

Will this information be needed for something?

[WanWizard]

In an OpenPLi image, downloaded from our download pages, there is NOTHING that generates excessive network traffic.

 

It does a DHCP request on bootup, and when enigma starts, it checks internet connectivity by verifyting DNS and reachability of our download servers, using a standard ping. The only other components in the image that will generate a bit of network traffic are samba (it will do some broadcast announcements) and avahi (mDNS broadcasts).

 

You can install tcpdump if you want, to check exactly what communication takes place (be sure to filter your telnet/ssh session out).

[Adrena]

Well thank you.

I started this thread from a problem with DHCP.

I will go to the wire Chinese router and check.

Maybe OpenPLi does not work with a fiber optic Nokia router?

Maybe the fiber optic operator blocks the port on my router?

This is pure magic.

 

[WanWizard]

As long as the router doesn't say why the port is being blocked, and we don't know what the box is doing, everything is speculation.

 

What you can do, is install tcpdump:

opkg install tcpdump

Then create the file /etc/init.d/rcS.local, and add the following line to it:

tcpdump -i eth0 -w /media/usb/capture.pcap

(assuming you have the option to connect a USB stick to it), and when done mark the file executable:

chmod 775 /etc/init.d/rcS.local

When the port blocks again, switch the box off, disconnect the USB stick, and upload the pcap file here so we can analyse it.

[Adrena]

@WanWizard

I did as you said

Finally, after three days of testing, I think that the oscam can be downloaded from the plugins is guilty of blocking ports on the router.

I have a file (even several) of packet capture.

How can I send a file in a different way than in a public forum?

[WanWizard]

Wot?

 

Oscam doesn't do any network communication on its own, not unless you configure it to do so. And even then, a router should not start magically blocking ports...

[Erik Slagter]

Depends on what TS calls "blocking" the port. Is it a layer 2 or layer 3 feature? Spanning tree? BPDU blocking? basic firewall functionality?

[WanWizard]

True.

 

But as this is about a provider supplied modem/router, I really doubt these features are at play here...