IPv6 discussions

[xiaofan]

The singtel router is from the last contract, it supports wifi5.

I have a 4G router, getting ipv6 address from the operator, I connect a windows pc to its LAN port, the windows NIC gets a public ipv6 address too, pingable from outside when windows firewall enables icmp.
however, when i connect this singtel router, there is no public ipv6 address from its LAN/wifi port client, all starts with fe08... private ipv6, so my guess is i need to use 'superuser' login id (which i don't know if calling singtel hotline will get it) to enable ipv6 on it manually; otherwise, the menu item is just greyed out.

In this case, just forget about this Singtel Mesh router (AC1900). It does not work with your 4G router.

Usually it will automatically run in AP mode when connected to your main router, and pass through IPv6 from the main router. Nothing about IPv6 you can set up in AP mode.

As far as I know, there is no such thing as super-admin password for this Singtel Mesh router, unlike the Singtel ONR.

I had no issues with this Singtel Mesh router for two IPv6 use cases last time.

1) ONT --> Singtel Mesh Router in router mode (with 6rd settings), Singtel 6rd IPv6.
2) ONT --> OpenWRT main router (Singtel 6rd or native IPv6) --> Singtel Mesh router (automatically run in AP mode)

 

[xiaofan]

My old post for Singtel Mesh router and 6rd back in August 2020.

https://forums.hardwarezone.com.sg/...fibre-broadband.6006714/page-2#post-129406528

I got the free SingTel Mesh Router (Consumer) (note: not a real Mesh solution, just the name). And then I enable ipv6 in the advance settings and indeed it works.

Settings:

IPv6 Protocol: IPv6 - 6rd
6rd Runner Type: Manual.Configuratuon
Prefix: 2400:d803::
Prefix length: 32
Border Relay: 6rd.singnet.com.sg (202.166.127.6)
IPv4 Address Mask: 0

Testing with test-ipv6.com shows the results are okay. I also test with Google's ipv6 test and the result is okay as well.

From my phone using termux.

$ ping6 -c 4 ipv6.google.com
PING ipv6.google.com(2404:6800:4003:c03::66) 56 data bytes
64 bytes from 2404:6800:4003:c03::66: icmp_seq=1 ttl=106 time=6.96 ms
64 bytes from 2404:6800:4003:c03::66: icmp_seq=2 ttl=106 time=10.9 ms
64 bytes from 2404:6800:4003:c03::66: icmp_seq=3 ttl=106 time=12.9 ms
64 bytes from 2404:6800:4003:c03::66: icmp_seq=4 ttl=106 time=15.3 ms

--- ipv6.google.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3002ms
rtt min/avg/max/mdev = 6.965/11.549/15.367/3.084 ms

 

[Xueqiu]

here is my network diagram, removal some non important info on this discussion.

 

[xiaofan]

here is my network diagram, removal some non important info on this discussion.

Yes, this is good picture.

Your prior post mixed up with Singtel ONR which has nothing to do with the discussion in reality.

As mentioned, I believe you can forget about the Singtel Mesh Router in this case, it seems not able to work with your 4G router.

But who knows, maybe others can help you better and find a solution.

 

[Xueqiu]

In this case, just forget about this Singtel Mesh router (AC1900). It does not work with your 4G router.

Usually it will automatically run in AP mode when connected to your main router, and pass through IPv6 from the main router. Nothing about IPv6 you can set up in AP mode.

As far as I know, there is no such thing as super-admin password for this Singtel Mesh router, unlike the Singtel ONR.

I had no issues with this Singtel Mesh router for two IPv6 use cases last time.

1) ONT --> Singtel Mesh Router in router mode (with 6rd settings), Singtel 6rd IPv6.
2) ONT --> OpenWRT main router (Singtel 6rd or native IPv6) --> Singtel Mesh router (automatically run in AP mode)

quote " 1) ONT --> Singtel Mesh Router in router mode (with 6rd settings), Singtel 6rd IPv6."

i don't find 6rd option in this mesh router, i cannot even click on ipv6 option at all.

strange...

 

[xiaofan]

quote " 1) ONT --> Singtel Mesh Router in router mode (with 6rd settings), Singtel 6rd IPv6."

i don't find 6rd option in this mesh router, i cannot even click on ipv6 option at all.

strange...

Because you do not use Singtel ONT. Only when used with Singtel ONT it will work properly as a router and then have the IPv6 settings.

When used behind a router (Singtel ONR, or your 4G router), it automatically run in AP mode and then no IPv6 settings possible. By right, it should pass through the IPv6 settings.

All in all, it is a customized router for Singtel. If it works for you then good, If not, then too bad, nothing you can do about it.

 

[xiaofan]

here is my network diagram, removal some non important info on this discussion.

Wait a moment, the Singtel Mesh router itself will not get an IPv6 address in AP mode and no IPv6 setting. By right, it should pass through the IPv6 from your 4G router to the wired and wireless clients.

Have you connected your PC to the Singtel Mesh router (wired connection or wireless connection) and see if the PC gets an IPv6 adress? Or you can use a mobile phone with wireless connection.

I thought you had done that and it did not work. But reading about the above posts, it seems to me you have not done that.

 

[Xueqiu]

Wait a moment, the Singtel Mesh router itself will not get an IPv6 address in AP mode and no IPv6 setting. By right, it should pass through the IPv6 from your 4G router to the wired and wireless clients.

Have you connected your PC to the Singtel Mesh router (wired connection or wireless connection) and see if the PC gets an IPv6 adress? Or you can use a mobile phone with wireless connection.

I thought you had done that and it did not work. But reading about the above posts, it seems to me you have not done that.

Indeed, i haven't don't that. I was a bit confused earlier on. You are probably right, given there isn't any PD from operator, and mesh router in AP mode, it is likely not getting any ipv6 address itself, my mind was still with ipv4 world.

 

[xiaofan]

Indeed, i haven't don't that. I was a bit confused earlier on. You are probably right, given there isn't any PD from operator, and mesh router in AP mode, it is likely not getting any ipv6 address itself, my mind was still with ipv4 world.

however, i did try use another x86/openwrt router replace my 4G router, x86/openwrt router is with a huawei dongle, getting the 4G from yet another operator, i enable RA relay/NDP relay etc on WAN and LTE6 interfaces, the windows pc connecting to it gets IPv6 address, the Singtel mesh router doesn't get, but i tried a wifi client to this singtel mesh router, the wifi client didn't get public IPv6 address either.

My guess, and based on your replies earlier on, seems there are some settings in this router that need to be tweeked, just that we have no access to the so-called superuser mode. If possible, i'd rather flash it with openwrt image, reading somewhere on the forum says it is actually a taiwan OEM, Arcadyan

FYI, as far as I know, it is not possible to flash this Singtel Mesh Router to OpenWRT and no point to mess with it.

Anyway, please try to connect a wired client or wireless client to the Singtel Mesh Router and see how it goes.

 

[xiaofan]

Just dig out my old Singtel Mesh router and connect it to an OpenWRT router with Singtel 6rd IPv6.

You can see that Singtel Mesh router does not get an IPv6 address, and the IPv6 setting is greyed out. But the wireless client (an Acer laptop which I am typing on to reply) has no problem to get proper IPv6 address.

PS C:\work\speedtest> ping ipv6.google.com

Pinging ipv6.l.google.com [2404:6800:4003:c03::71] with 32 bytes of data:
Reply from 2404:6800:4003:c03::71: time=5ms
Reply from 2404:6800:4003:c03::71: time=7ms
Reply from 2404:6800:4003:c03::71: time=5ms
Reply from 2404:6800:4003:c03::71: time=7ms

Ping statistics for 2404:6800:4003:c03::71:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 5ms, Maximum = 7ms, Average = 6ms

 

[xiaofan]

By the way, for Singtel issued ZTE ONR, you may be able to log in with the super-admin account and then setup 6rd IPv6 by yourself. Some users have reported the success.

But if you need to get Singtel native IPv6 to work, then you have to contact Singtel to enable it from the backend.

User name -- support (not the normal root account).
Password -- reverse of the root account password printed on the ONR.

6rd setting page for my Singtel ZTE F8648P ONR.

Status page

 

[Xueqiu]

Just dig out my old Singtel Mesh router and connect it to an OpenWRT router with Singtel 6rd IPv6.

You can see that Singtel Mesh router does not get an IPv6 address, and the IPv6 setting is greyed out. But the wireless client (an Acer laptop which I am typing on to reply) has no problem to get proper IPv6 address.

PS C:\work\speedtest> ping ipv6.google.com

Pinging ipv6.l.google.com [2404:6800:4003:c03::71] with 32 bytes of data:
Reply from 2404:6800:4003:c03::71: time=5ms
Reply from 2404:6800:4003:c03::71: time=7ms
Reply from 2404:6800:4003:c03::71: time=5ms
Reply from 2404:6800:4003:c03::71: time=7ms

Ping statistics for 2404:6800:4003:c03::71:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 5ms, Maximum = 7ms, Average = 6ms

quote "Just dig out my old Singtel Mesh router and connect it to an OpenWRT router with Singtel 6rd IPv6."

how does your network setup look like?
wifi client->singtel mesh router->openwrt(non singtel)->singtel ONT(with 6rd?)?

 

[xiaofan]

quote "Just dig out my old Singtel Mesh router and connect it to an OpenWRT router with Singtel 6rd IPv6."

how does your network setup look like?
wifi client->singtel mesh router->openwrt(non singtel)->singtel ONT(with 6rd?)?

btw, i login with support account, the info on 6RD is identical to what i see when login as root, no configuration field in 6rd at all. i guess, these fields are controlled by singtel.

it further means even the old mesh router has some setting shielded by singtel somehow.

oh, i tried connect to 4G router with singtel mesh router and wifi client, no ipv6 address in 24.. range.. just doesn't work out.

If SingTel Mesh router does not work with your 4G router for IPv6, I guess you cannot do much.

As for ZTE ZHXN F620 ONR, if it does not 6rd settings, then you cannot do much either. Majority of the SingTel ONR users do not get IPv6 working anyway.

I have upgraded to SingTel 5Gbps so no longer using ONT.

SingTel ZTE F8648P ONR self-bridged -- OpenWRT main router (usuallt with native SingTel IPv6, occasionally switched to SingTel 6rd IPv6 for testing purpose) -- Asus RT-AX86U in AP mode, and now adding SingTel Mesh Router in AP mode).

 

[Xueqiu]

If SingTel Mesh router does not work with your 4G router for IPv6, I guess you cannot do much.

As for ZTE ZHXN F620 ONR, if it does not 6rd settings, then you cannot do much either. Majority of the SingTel ONR users do not get IPv6 working anyway.

I have upgraded to SingTel 5Gbps so no longer using ONT.

SingTel ZTE F8648P ONR self-bridged -- OpenWRT main router (usuallt with native SingTel IPv6, occasionally switched to SingTel 6rd IPv6 for testing purpose) -- Asus RT-AX86U in AP mode, and now adding SingTel Mesh Router in AP mode).

i have no much experience in ONT,

if you set a singtel ONR into bridge mode, does that mean:
1) the extra LAN ports on ONR are of no use any more
2) the main router needs to do PPPoE (ie we need to get user/pass from singtel team) to do authentication?

 

[xiaofan]

i have no much experience in ONT,

if you set a singtel ONR into bridge mode, does that mean:
1) the extra LAN ports on ONR are of no use any more
2) the main router needs to do PPPoE (ie we need to get user/pass from singtel team) to do authentication?

1) Yes, for ZTE F8648P XGS-PON ONR, the extra LAN ports are no longer useful for Internet access. They can only be used for SingTel TV if you have that.

For other ONRs, things may be different. Other LAN ports may still be functional, especially for GPON ONRs (for 1Gbps/2Gbps plans).

2) No, just DHCP. Singapore ISPs do not use PPPoE for Fibre Internet.

 

[xiaofan]

If you want to take a little bit of risks, you should be able to bridge SingTel issued ZTE ZXHN F620 ONR easily. Then you can set up IPv6 on your own router connected to the bridged port.

Please refer to the following post.

Post in thread 'Using Router behind CGNAT, behind ONR (Double NAT), ONR bridging, ONR replacement with ONU or PON Stick' https://forums.hardwarezone.com.sg/...-with-onu-or-pon-stick.6938685/post-152720280

 

[Xueqiu]

If you want to take a little bit of risks, you should be able to bridge SingTel issued ZTE ZXHN F620 ONR easily. Then you can set up IPv6 on your own router connected to the bridged port.

Please refer to the following post.

Post in thread 'Using Router behind CGNAT, behind ONR (Double NAT), ONR bridging, ONR replacement with ONU or PON Stick' https://forums.hardwarezone.com.sg/...-with-onu-or-pon-stick.6938685/post-152720280

n.a.

thanks for all the advices, i learnt and clarified a lot of myth.

 

[ShrmnK]

Happy to report IPv6 on my VQ side works now. Had to use ::2/64 address on the LAN side for my LAN network :1/64 didn't work)

 

[Lit3s]

Gurus, just had my M1 6gbps with Archer 805 activated yesterday. I was going through the settings since the M1 tech did a simple quick installation and zip off. I realize the ipv6 setting was turn off on default. Is this normal?

 

[xonix]

Gurus, just had my M1 6gbps with Archer 805 activated yesterday. I was going through the settings since the M1 tech did a simple quick installation and zip off. I realize the ipv6 setting was turn off on default. Is this normal?

Not sure about tp link model, most of the routers i have used, it's usually off by default. Just enabled it if you want to use it.