Recent posts

#31

General Questions & Suggestions / Re: California University Syst...

Last post by jonathanlee571 - January 31, 2025, 07:36:54 AM

My IPS/IDS (intrusion detection, intrusion prevention system) rarely sees issues on ipv6, it does see them because every once and a while it spots one and blocks it, when juxtaposed to ipv4 there is tons of detections and blocks and abuse. It just seems logical that the version with less abuse would be more ideal.

#32

General Questions & Suggestions / Re: California University Syst...

Last post by Pentium4User - January 30, 2025, 08:32:40 AM

Lazy admins, managers who don't want it, no time, or "no need".

#33

General Questions & Suggestions / California University System

Last post by jonathanlee571 - January 30, 2025, 08:25:21 AM

I was wondering if anyone can explain why a major University would not support or deploy ipv6 yet? I was told about ipv6 back in the 2000-2002 at RTI (regional technical institute) that it was going to replace everything.  2025 it still seems to be delayed and even blocked. Does anyone know what risks are associated with ipv6, and or why a university would choose to not utilize the newer protocol? It seems all of my smartphones are now using this, it is not just an ISP thing, as there are ways to get ipv6 by way of a broker (California based tunnel broker), so why not use it? Why would the university system not use it however allow smartphones to use it?

#34

General Discussion / Is it possible to get a login ...

Last post by obitori - January 26, 2025, 06:54:54 PM

I got my IPv6 cert quite a few years ago and then switched ISPs to someone with a IPv6 offering.  I moved and now I want to set up the HE ipv4-to-ipv6 tunnel, but i have no recollection what the 2fa authenticator I used for my account.  I know my password.  Is it possible to get the 2FA turned off and log in to the main page?

#35

Questions & Answers / Re: Google simple CE machine t...

Last post by snarked - January 01, 2025, 11:58:17 AM

Check your IPv6 address instructions:  Make certain your "xxx" field is an odd number as that is used for the tunnel endpoints.  An even "xxx" is used for the routed /64 at your site (usually on Ethernet), and thus does not belong on the point-to-point interface.

#36

Questions & Answers / Re: Google simple CE machine t...

Last post by rattila - January 01, 2025, 04:35:53 AM

Addendum:

he-ipv6: flags=209<UP,POINTOPOINT,RUNNING,NOARP>  mtu 1480
        inet6 2001:470:1f1a:xxx::2  prefixlen 64  scopeid 0x0<global>
        sit  txqueuelen 1000  (IPv6-in-IPv4)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 191  dropped 0 overruns 0  carrier 191  collisions 0

Something wrong! There are TX error and carrier and no TX packets!
Where could be the problem? In my config (VM) or Google part (filtered protocol)?

I know there is native IPv6 support many GCEs except this very small (almost hobbyist) machines.

TIA,
Ruzsi

#37

Questions & Answers / Google simple CE machine tunne...

Last post by rattila - January 01, 2025, 04:20:39 AM

Hi,

I've got a very cheap originally free tier compute engine (VM).
I setup my tunnel and the remote end doesn't answer for ping:
root@ub2-1:/etc/netplan# ping 2001:470:1f1a:xxx::1
PING 2001:470:1f1a:xxx::1(2001:470:1f1a:xxx::1) 56 data bytes
From 2001:470:1f1a:xxx::2 icmp_seq=1 Destination unreachable: Address unreachable

I open up the firewall for the tunnel server IP address which the Budapest server.
I didn't get any packet from the server checking tcpdump ens4.

I read somewhere google doesn't allow tunnel protocol 41 (IPv6 encap).
Is that true?

TIA,
Ruzsi

#38

General Questions & Suggestions / HE Dynamic DNS Settings

Last post by Pivson - December 27, 2024, 02:10:19 PM

I understand the tunnel settings (tunnelbroker.net)
    My tunnel >> Advanced >> HE Dynamic DNS Settings >> Hostname

a) Does it work so that after updating my IPv4 address, the address of the DNS record in the domain is set at the same time?

b) Is there any way to set up more than one domain/subdomain here (with Hostname)?


Thanks for the answers.

#39

IPv6 Basics & Questions & General Chatter / Re: Packet loss to tunnel.tser...

Last post by Pentium4User - December 19, 2024, 08:07:50 AM

Then test

Code Select Expand


mtr <IP of tunnel endpoint>It it maybe a problem in the connection between you and your ISP or your ISP between the HE tunnel server.

#40

IPv6 Basics & Questions & General Chatter / Re: Packet loss to tunnel.tser...

Last post by lobotiger - December 19, 2024, 06:20:30 AM

Thanks, just tried that out and looks like I'm seeing packet loss right at my tunnel's endpoint and then continues from there until it hits Cloudflare's DNS server.