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michaelmurfy

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  #2048697 4-Jul-2018 07:32
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BlackHand:

 

What's the benefit/use of ip { enable-proxy-arp }, I couldn't find a proper answer on the ubiquiti forums?

 

You likely don't need it. I run multiple networks which is where it comes in handy: https://en.wikipedia.org/wiki/Proxy_ARP 





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mentalinc
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  #2048774 4-Jul-2018 10:01
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So copied the config over and update with mine.

 

Main change as remove the mss-clamp and changing the mtu

 

 

I have a pi-hole running as well (so need the no-dns).

 

Still same result.

 

 

the eth2 gets a /56 address. pppoe ends up with a fe80 address

 

 

Surely it's not a case of only works on eth1?

 

 

Do you have a static IP? wondering if something is causing a new IP to be requested with causes the whole thing to fail. if you had static IP that wouldn't be the case.

 

 

my config - have removed portfowarding and static IP mapping (passwords as well)

 

 

https://owncloud.mentalinc.xyz:44338/index.php/s/4pQGqps3Sf93c4t




CPU: AMD 5900x | RAM: GSKILL Trident Z Neo RGB F4-3600C16D-32GTZNC-32-GB | MB:  Asus X570-E | GFX: EVGA FTW3 Ultra RTX 3080Ti| Monitor: LG 27GL850-B 2560x1440

 

 


BlackHand
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  #2048779 4-Jul-2018 10:12
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I have the exact same issue, called the 2degrees helpdesk and they said my problem is most likely due to the following Chorus issue... https://www.geekzone.co.nz/forums.asp?forumid=85&topicid=230792

 

 




michaelmurfy

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  #2048868 4-Jul-2018 11:37
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I've also got a static IP (IPv4 / v6) which may have something to do with it. I however don't think so.





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mentalinc
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  #2048920 4-Jul-2018 12:48
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Interesting re the fault.

 

However if i use the fritzbox I get IPv6 working no issues.

 

As soon as I connect edgerouter instead no dice.

 

 

Which makes it seem a different issue.

 

@BlackHand do you have a fritzbox to test with?

 

 

I've also download the fritzbox config so will see if there are any secrets hidden in that config




CPU: AMD 5900x | RAM: GSKILL Trident Z Neo RGB F4-3600C16D-32GTZNC-32-GB | MB:  Asus X570-E | GFX: EVGA FTW3 Ultra RTX 3080Ti| Monitor: LG 27GL850-B 2560x1440

 

 


BlackHand
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#2049041 4-Jul-2018 14:32
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mentalinc: Interesting re the fault. However if i use the fritzbox I get IPv6 working no issues. As soon as I connect edgerouter instead no dice. Which makes it seem a different issue. @BlackHand do you have a fritzbox to test with? I've also download the fritzbox config so will see if there are any secrets hidden in that config

 

 

 

No I don't


fe31nz
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  #2049366 4-Jul-2018 23:38
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Looking at your config.boot, I think your problem may be the "prefix-length /56" in your pppoe 0 / dhcp-pd / pd 0 section.  The dhcp-pd definitions are for the delegation of IPv6 address blocks to your other interfaces, not for what is received over the pppoe0 connection.  The IPv6 address block you are getting from 2Degrees is a /56, and you want to delegate a /64 from that to each subnet that has IPv6 on it.  So you should be using "prefix-length /64" there.  Also, I am not entirely sure what the "prefix-only" option is for, but I think you do not want it.  You want the DHCPv6 server to be delegating IPv6 address to the subnets, not just a prefix that another router can then delegate further from.

 

Other matters I can see in the config.boot:

 

1) You do not want to set MTU 1508 on eth1 and eth2.  That will cause fragmentation and over long packet problems, as your connection to the Internet is MTU 1500.  The MTU 1508 on the eth0 and VLAN 10 interfaces is to allow for the extra 8 bytes of overhead of the PPPoE protocol.  Those 8 bytes are stripped off as the packets are received by the PPPoE client, leaving you with an actual MTU of 1500.

 

2) Your syslog config does not have any "host" definitions set up to send the syslog packets to.




michaelmurfy

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  #2049377 5-Jul-2018 00:21
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@fe31nz Just to correct you on a few things:

1) It is important to have the "prefix-only" in the configuration on 2degrees since EdgeOS handles unsolicited DHCPv6-PD advertisements in a way that causes it to spawn a new thread for every unsolicited advertisement but is never able to receive a prefix or address. This will almost max out the CPU on an Edgerouter 4 and will totally max out the CPU / cause the router to crash if that router is an Edgerouter Lite or X.

 

2) 2degrees hands out a /56 on my connection - this is divided to /64's across my networks.

 

3) In my configuration (if you're looking at mine) the configuration is sending syslog to a syslog server on my network. By default, this is logged internally and thus no "host" definitions are required. This is simply the default configuration and EdgeOS allows the viewing of syslog in the UI.

 

However, very good point on the MTU of the network interface - this often doesn't matter on most networks as Windows etc will default the MTU at 1500 but it is a good idea to restrict this on router level too. I had this incorrect configuration on mine (changed now) but is not the reason for why IPv6 wouldn't work as it is working totally fine on my configuration.

 

I suspect the real issue at play here is the Chorus issue currently going on. There is no other reason from that configuration I can see that would prevent IPv6 from working.

 

@mentalinc I know it is annoying but perhaps do a full factory reset and try the default wizard to configure the router. There is either something funky going on with the router, or with your connection. Using the default wizard if I remember correctly this should give you IPv6.





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freakngeek
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  #2049395 5-Jul-2018 07:35
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I can't have pppoe MTU at 1500 with Unlimited Internet

 

So I have MTUs set to:
pppoe 1492
Eth 1500
MSS clamping 1452

 

If you can enable Mini-Jumbo packets then
pppoe 1500
Eth 1508
MSS Clamping 1460

 

 


BMarquis
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  #2049423 5-Jul-2018 09:20
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@mentalinc I work at Chorus, happy to check your connection to find out if you are affected by our IPv6 Issue.  Just PM me your address.


mentalinc
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  #2049482 5-Jul-2018 09:51
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@BMarquis @freitasm

 

Can you share with freitasm some info so you can get the fancy chorus tag added to your account?

 

BMarquis, thanks so much for helping out, I'm not keen on sending my address to a random Internet person, but get that magic tick and I'll ping it through to double check if IPv6 impacting me.





CPU: AMD 5900x | RAM: GSKILL Trident Z Neo RGB F4-3600C16D-32GTZNC-32-GB | MB:  Asus X570-E | GFX: EVGA FTW3 Ultra RTX 3080Ti| Monitor: LG 27GL850-B 2560x1440

 

 


BMarquis
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  #2049485 5-Jul-2018 09:54
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mentalinc:

 

@BMarquis @freitasm

 

Can you share with freitasm some info so you can get the fancy chorus tag added to your account?

 

BMarquis, thanks so much for helping out, I'm not keen on sending my address to a random Internet person, but get that magic tick and I'll ping it through to double check if IPv6 impacting me.

 

 

 

 

Fair enough, I'm working through sorting that with @Chorusnz at the moment.
You could PM me the serial number on your ONT as an alternative :)


hio77
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  #2049490 5-Jul-2018 10:18
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BMarquis:

 

Fair enough, I'm working through sorting that with Chorusnz at the moment.
You could PM me the serial number on your ONT as an alternative :)

 

 

oh no! branded now!





#include <std_disclaimer>

 

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

 

 


mentalinc
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  #2050920 7-Jul-2018 07:52
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Just to wrap it up since I moved it to another thread both BlackHand and I now have working IPv6 after reaching out to 2degrees support to have them remove and re-add IPv6 to our accounts.




CPU: AMD 5900x | RAM: GSKILL Trident Z Neo RGB F4-3600C16D-32GTZNC-32-GB | MB:  Asus X570-E | GFX: EVGA FTW3 Ultra RTX 3080Ti| Monitor: LG 27GL850-B 2560x1440

 

 


BlackHand
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  #2054286 11-Jul-2018 12:39
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For a 2degrees connection (pppoe & vlan) what is the recommended hardware offload setting for ipv6, given that you can't have vlan and pppoe enabled at the same time :

 

set system offload ipv6 forwarding enable
set system offload ipv6 pppoe enable
set system offload ipv6 vlan enable

 

 

 

 


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