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Author Topic: "Request Error" with DDNS update  (Read 5732 times)

fir3drag0n

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  • Posts: 3
"Request Error" with DDNS update
« 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:



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
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aandaluz

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Re: "Request Error" with DDNS update
« Reply #1 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.
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kcochran

  • Sr. Network Engineer, Hurricane Electric
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Re: "Request Error" with DDNS update
« Reply #2 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.
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kcochran

  • Sr. Network Engineer, Hurricane Electric
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Re: "Request Error" with DDNS update
« Reply #3 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.
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aandaluz

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Re: "Request Error" with DDNS update
« Reply #4 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, but there is also a forced refresh interval every 21 days by default.
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