Hurricane Electric's IPv6 Tunnel Broker Forums

Tunnelbroker.net Specific Topics => Questions & Answers => Topic started by: fir3drag0n on August 16, 2015, 11:29:28 AM

Title: "Request Error" with DDNS update
Post by: fir3drag0n on August 16, 2015, 11:29:28 AM
Hi,

I recently get a "request error" when I try to update the DDNS. I do have an Asus RT-AC66U (Merlin build 378.55). The data are as follows:

(http://imagizer.imageshack.us/v2/xq90/901/9i1erv.png) (https://imageshack.com/i/p19i1ervp)

The log says:

Quote
Aug 16 20:28:32 watchdog: start ddns.
Aug 16 20:28:32 rc_service: watchdog 284:notify_rc start_ddns
Aug 16 20:28:32 ddns update: ez-ipupdate: starting...
Aug 16 20:28:32 ddns update: connected to ipv4.tunnelbroker.net (64.62.200.2) on port 80.
Aug 16 20:28:32 ddns update: bad request: Abuse
Aug 16 20:28:32 ddns update: asusddns_update: 1
Title: Re: "Request Error" with DDNS update
Post by: aandaluz on August 17, 2015, 02:41:50 AM
I'm seeing this issue too in my Asus RT-AC87U. Tunnel endpoint updates stoped working two days ago. I've even set a new tunnel to see if there was an issue specific to my endpoint (paris), but it still did not work.
Title: Re: "Request Error" with DDNS update
Post by: kcochran on August 17, 2015, 11:49:39 AM
We've seen an incredible increase in the number of requests from the "ez-ipupdate" agent, of which virtually all are invalid (RFC1918 IP updates, invalid hostnames, bogus data, update intervals of a minute or less, etc.)  A less blanket block on that agent is in the works, but when 99.9% of the requests are bad and at a very high rate, we had to do something in the meantime.
Title: Re: "Request Error" with DDNS update
Post by: kcochran on August 22, 2015, 06:20:24 AM
Adjustments have been made to cope with the flood of invalid requests, so the valid ones should be processed as normal at this time.

As a note, the vast majority of invalid requests use hostnames instead of tunnel IDs, and IPv4 endpoints that are obviously internal to a NAT.  When configuring your update on your devices, make sure you're using the proper values!  Also only update when there's a change.
Title: Re: "Request Error" with DDNS update
Post by: aandaluz on August 22, 2015, 08:37:19 AM
I can confirm that my Tunnel endpoints updates are working again since Sun. 22nd Augut 13:00 (UTC).
Just for reference,  Asus routers wrt firmware only requests tunnel updates when the public ip changes (http://www.snbforums.com/threads/ddns-and-dyndns.9587/), but there is also a forced refresh interval every 21 days by default.