06-01-2016 6:57 PM
Why can I no longer ping any of my static IP addresses from the Internet (using ping.eu)?
I have a 2wire 3800HGV-B that has worked well for several years (rented). I can no longer access (ping) any of the machines assigned, nor does the router respond to ping on its public address.
The machines have static addresses assigned, and I can reach the internet from them. Tracert from ping.eu fails at an AT&T network machine.
I verified all settings in router's LAN config, and each of the machines is set up in DMZplus mode.
Solved by: Go to Solution.
06-02-2016 6:53 AM
Rebooting the modem and re-entering the settings may work. Also, there is a setting in the modem to Block Ping. Unchecking that may help. It is under the Firewall setting.
06-02-2016 7:13 AM
If everything is routing correctly, and it is all working besides Ping requests, it could be an issue with the Ping packet getting discarded. You can get a packet tracing software like wireshark to see what is happening.
06-02-2016 7:33 AM
No traffic is making it in. No igmp, http, ftp, etc.. Nothing.
Like I said, AT&T static addresses have been working fine for years. Then suddenly, nothing coming in.
I would venture to say there was a filter put in place or something broken upstream (possibly at 126.96.36.199), so no internet traffic to my network. Outbound works as expected.
06-02-2016 7:35 AM
|10||cr2.n54ny.ip.att.net||188.8.131.52||us||124.827 ms||124.453 ms||124.419 ms|
|11||cr2.wswdc.ip.att.net||184.108.40.206||us||129.281 ms||129.569 ms||129.557 ms|
|12||cr1.wswdc.ip.att.net||220.127.116.11||us||129.198 ms||130.243 ms||129.931 ms|
|13||cr2.sl9mo.ip.att.net||18.104.22.168||us||128.375 ms||130.268 ms||128.314 ms|
06-02-2016 7:36 PM
To all reading, I did a factory reset and reconfigured. Works now. AT&T may be blocking icmp requests from ping.eu servers. Network-Tools.com came in handy.
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