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justinseiser
Beginner

Cisco 881w - DDNS Bug?

I have a Cisco 881w that I am trying to configure DDNS on.  I believe I have everything configured correctly and that somehow the IOS is sending incorrect parameters if my debug statement is showing the correct results.

ip ddns update method no-ip

HTTP

  add http://username%40gmail.com:password%40dynupdate.no-ip.com/nic/update%3Fhostname=&myip=

interval maximum 0 0 5 0

interval minimum 0 0 5 0

!

The code above is not working.  When I do a 'debug ip ddns update', it shows the following.

000223: Aug 14 12:18:08.027 EDT: DYNDNSUPD: Adding DNS mapping for hostname.no-ip.biz <=> XX.XX.83.166

000224: Aug 14 12:18:08.027 EDT: HTTPDNS: Update add called for hostname.no-ip.biz <=> XX.XX.83.166

000225: Aug 14 12:18:08.027 EDT: HTTPDNSUPD: Session ID = 0x82

000226: Aug 14 12:18:08.027 EDT: HTTPDNSUPD: URL = 'http://username@gmail.com:password@dynupdate//username@gmail.com:password@dynupdate-no-ip.com/nic/update?hostname=hostname.no-ip.biz&myip=XX.XX.83.166'

000227: Aug 14 12:18:08.027 EDT: HTTPDNSUPD: Sending request... status='Host name resolution failed', tid=0

The relevant portion is that in the add statement the address is 'dynupdate.no-ip'. Note the period between 'dynupdate' and 'no-ip'.  Yet the debug is showing 'dynupdate-no-ip.com', note the hyphen between 'dynupdate' and 'no-ip'.  Host name resolution would fail when looking for dynupdate-no-ip.com because its not the correct address.

IOS - c880data-universalk9-mz.152-2.T.bin

3 REPLIES 3
paolo bevilacqua
Hall of Fame Master

Check configured ip name server, or use Ip address instead of name.

My name resolution works fine.

ip name-server 208.67.222.222

ip name-server 208.67.220.220

Justin-Router#ping no-ip.com

Translating "no-ip.com"...domain server (208.67.222.222) [OK]

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 8.23.224.110, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 92/95/96 ms

I do not understand what you want me to try by ip?

Try configuriring with @ sign instead of quoting.

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