Some strange VLAN settings

[lamsao]

I have a T-mobile brand of Asus RT-AC68U router. I have updated the CFE to Asus 1.0.2.0 and firmware to Merlin 376.47. Everything seems to work fine. Now I want to update VLAN settings to create a private network out of port 4 (following this http://forums.smallnetbuilder.com/showthread.php?t=14983) but notice some differences in VLAN settings and would like to have a few questions.

"robocfg show" command shows these infos

admin@TM-AC1900-Samba:/tmp/home/root#robocfg show
Switch: enabled
Port 0: 100FD enabled stp: none vlan: 2 jumbo: off mac: 00:90:1a:a2:2d:69
Port 1: 1000FD enabled stp: none vlan: 1 jumbo: off mac: 8c:e7:48:17:69:5f
Port 2: DOWN enabled stp: none vlan: 1 jumbo: off mac: 00:00:00:00:00:00
Port 3: DOWN enabled stp: none vlan: 1 jumbo: off mac: 00:00:00:00:00:00
Port 4: 1000FD enabled stp: none vlan: 1 jumbo: off mac: 00:1d:fe:dc:e2:fb
Port 8: DOWN enabled stp: none vlan: 2 jumbo: off mac: 00:00:00:00:00:00
VLANs: BCM5301x enabled mac_check mac_hash
1: vlan1: 1 2 3 4 5t
2: vlan2: 0 5
56: vlan56: 0t 2 3 5 7t
57: vlan57: 3 4t 5t 7 8t
58: vlan58: 0t 2t 4t 5 8u
59: vlan59: 1 3t 4t 7 8t
60: vlan60: 0 4 8u
61: vlan61: 0t 1 2 5t 7t
62: vlan62: 1t 2 3t 7 8u

1. The available ports are: 0,1,2,3,4, and 8. There is no port 5, but it is used in the vlan1 and vlan2 settings. Should the vlan1 and vlan2 settings be like this? If so, how to correct it?
1: vlan1: 1 2 3 4 8t
2: vlan2: 0 8

2. What are the vlan56-vlan62 for? Are they hard-coded in the firmware or part of GUI settings? If the latter, where in the GUI?

3. If you have an AC68U router, what do you get with "robocfg show" ?

Many thanks,
lamsao

 

[AndreyPopov]

each router has it own switch formula!!!!!!!!!!!

AC68 has 5 (CPU Port) not 8!!!!!!!!
https://github.com/RMerl/asuswrt-merlin/blob/master/release/src/router/rc/sysdeps/init-broadcom.c

 

[RMerlin]

2. What are the vlan56-vlan62 for? Are they hard-coded in the firmware or part of GUI settings? If the latter, where in the GUI?

Many thanks,
lamsao

This is just garbage information. I was able to blindly implement basic support for the BCM53110 in robocfg, but since I lack access to any technical information from Broadcom, I don't know how to properly obtain the list of configured VLANs, so a few random results will show up on the AC56/AC68/AC87. These don't actually exist.

 

[lamsao]

each router has it own switch formula!!!!!!!!!!!

AC68 has 5 (CPU Port) not 8!!!!!!!!
https://github.com/RMerl/asuswrt-merlin/blob/master/release/src/router/rc/sysdeps/init-broadcom.c

But why does robocfg list port 8 (I guess it is for CPU port), not port 5!?

Port 8: DOWN enabled stp: none vlan: 2 jumbo: off mac: 00:00:00:00:00:00

 

[lamsao]

This is just garbage information. I was able to blindly implement basic support for the BCM53110 in robocfg, but since I lack access to any technical information from Broadcom, I don't know how to properly obtain the list of configured VLANs, so a few random results will show up on the AC56/AC68/AC87. These don't actually exist.

Would it be safe to delete those garbage vlan56-vlan62 with these commands?

robocfg switch disable
robocfg vlans enable
robocfg vlans reset
robocfg vlan 1 "1 2 3 4 5t"
robocfg vlan 2 "0 5"
robocfg switch enable

and put them in in /jffs/scripts/firewall-start ?

 

[AndreyPopov]

Would it be safe to delete those garbage vlan56-vlan62 with these commands?

robocfg switch disable
robocfg vlans enable
robocfg vlans reset
robocfg vlan 1 "1 2 3 4 5t"
robocfg vlan 2 "0 5"
robocfg switch enable

and put them in in /jffs/scripts/firewall-start ?

in any way NOT to od this!!!!

you already have this config by default!!

1: vlan1: 1 2 3 4 5t
2: vlan2: 0 5

The available ports are: 0,1,2,3,4, and 8. There is no port 5, but it is used in the vlan1 and vlan2 settings.

But why does robocfg list port 8 (I guess it is for CPU port), not port 5!?

Port 8: DOWN enabled stp: none vlan: 2 jumbo: off mac: 00:00:00:00:00:00

answer here:

This is just garbage information. I was able to blindly implement basic support for the BCM53110 in robocfg, but since I lack access to any technical information from Broadcom, I don't know how to properly obtain the list of configured VLANs, so a few random results will show up on the AC56/AC68/AC87. These don't actually exist.

 

[RMerlin]

Would it be safe to delete those garbage vlan56-vlan62 with these commands?

Don't touch that. As I said, it's just garbage info, they don't really exist. This is a bug in how robocfg retrieves and displays the list of existing VLANs, not a bug in VLANs themselves.

 

[lamsao]

in any way NOT to od this!!!!

you already have this config by default!!





answer here:

Ah, I missed the last sentence "These don't actually exist" so thought the VLANs were mis-configured. Thanks for pointing that out.

 

[lamsao]

Don't touch that. As I said, it's just garbage info, they don't really exist. This is a bug in how robocfg retrieves and displays the list of existing VLANs, not a bug in VLANs themselves.

Got it. Thanks.

 

[icece]

I had a similar configuration & deleted all dead entries.

 

[lamsao]

I had a similar configuration & deleted all dead entries.

Could you elaborate how you deleted the dead entries? TIA.

 

[icece]

Could you elaborate how you deleted the dead entries? TIA.

Nope, it's long time ago, just fragmented memories such as deleted all spurious entries, nvram commit, no reboot and finally a reset to factory defaults.