Strange WAN connection issue
I am running an OC200 with the ER7206 and trying to connect a new fiber line through Ethernet. It's kinda a long story, sorry.
Starting off today I had four DSLs on WAN1-WAN4, all working fine. There was a new fiber line installed at the location so the absolute first thing I did was to configure my laptop to connect directly to make sure the fiber was good. I connected a cable from the Ethernet output of the fiber converter directly to my laptop and configured the Ethernet port in my laptop to these settings:
IP Address 173.195.163.130
Subnet Mask 255.255.255.248
Gateway 173.195.163.129
VLAN 270
DNS1 8.8.8.8
DNS2 4.2.2.2
Ping 173.165.163.130 = Success
Ping 173.195.163.129 = Success
Ping 8.8.8.8 = Success
Ping website = Success
Speedtest = 420/415
All good! I configure WAN port 4 on the router to those same settings, unplug the end of the Ethernet cable from my laptop and plug it into WAN4, then I run my tests...
Ping 173.165.163.130 = Success
Ping 173.195.163.129 = Fail
Ping 8.8.8.8 = Success
Ping website = Success
Speedtest = 75/1.8
Keep in mind that there are still three active DSL lines on WAN1-3. Lights show no activity on WAN4 or the fiber converter Ethernet port. Weird. Just for grins I try the same thing except I use WAN1 instead of WAN4. Same results.
So now I am getting confused, so I think maybe it has something to do with multiple WANs running so I remove ALL WANs, start from scratch with it on WAN1 as the one and only connection. (and yes, rebooting every time I add or remove a WAN connection)
Ping 173.165.163.130 = Success
Ping 173.195.163.129 = Fail
Ping 8.8.8.8 = Fail
Ping website = Fail
Really puzzled here so I unplug the Ethernet cable from the router, plug it back into my laptop, wait a minute for everyone to talk to each other and run my test again:
Ping 173.165.163.130 = Success
Ping 173.195.163.129 = Success
Ping 8.8.8.8 = Success
Ping website = Success
Speedtest = 418/407
So the fiber and media converter are good. Only difference I can see is maybe MAC Address? So yeah, I unplugged the Ethernet cable from my laptop and plugged it back in the router, went into the settings for WAN1 and changed the MAC address to the same MAC as my laptop.
Ping 173.165.163.130 = Success
Ping 173.195.163.129 = Fail
Ping 8.8.8.8 = Fail
Ping website = Fail
I am at a loss. I know for a fact the internet connection is good, I know for a fact that the Ethernet port and cable are good, I know for a fact that the WAN port on the router is good, I know for a fact that the MAC installed works with the fiber connection, but for some odd reason, all of these known good things do not work TOGETHER. WTH?
Yes, I double and triple checked my settings, including the internet VLAN. It is absolutely acting like the internet VLAN is the issue, and I absolutely make mistakes, but there is no way I made the exact same mistake this many times, and missed it double-checking over and over.
What else could I be missing?
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So the solution was pretty straight forward and easy, making me feel like a complete idiot. Although it took a while for the engineer to spot it too so I dont feel too bad.
When I hooked the line up to my laptop I had to enter the IP information of course, but I also had to put in the VLAN. The network adapter in my laptop it seems automatically enables VLAN tagging while the router does not. This is why it works in the laptop and then fails in the router. Clicking the checkbox next to the VLAN option in the router configuration for that port to enable tagging immediately solves the issue.
To be clear, you first have to check the VLAN checkbox under advanced, then enter the VLAN number, and THEN check the box next to 802.1Q VLAN tagging for it to work. I honestly don't know if the previous installs did not require me to check and tagging box, or I am just getting old and didn't remember they require that.
Anyway, all fixed and it all makes sense now.
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Glad you managed to sort the problem.
As for ' and it all makes sense now.' , I'm not sure about that ! It seems daft that you can enable VLAN and enter a VLAN ID on a WAN port and it doesnt tag egress packets!!
I'm not familiar with the OC200 UI but looking at the standalone user guide it seems to have similar stupidities but at leat it warns in the use guide...
VLAN ID If VLAN for the WAN port is enabled, you need to enter a VLAN ID. Then the WAN
port is automatically assigned to the VLAN. By default, the egress rule of the VLAN
is UNTAG, so the packets are transmitted by the WAN port without VLAN tags. If
you want the WAN port to transmit packets with VLAN tag, you need to configure its
egress rule as TAG. To configure VLANs, go to Network > VLAN > VLAN.
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