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Hurricane Electric's IPv6 Tunnel Broker Forums > General IPv6 Topics > IPv6 Basics & Questions & General Chatter > Help
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Author Topic: Help  (Read 2481 times)
scoffey522
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« on: December 29, 2008, 06:12:16 pm »
When I'm trying to create a regular tunnel it says:

Error: Your IPv4 endpoint is unreachable or unstable. Please make sure ICMP is not blocked.

How can I unblock ICMP Huh
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kriteknetworks
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« Reply #1 on: December 29, 2008, 08:15:28 pm »
No idea, you didn't provide any details to work with, sorry.
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broquea
Senior Network Engineer, SEVEN Networks (AS19733)
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« Reply #2 on: December 29, 2008, 08:28:42 pm »
If you are lucky, and behind a consumer grade firewall/nat/router appliance, there is usually an option/checkbox to allow pings. Make sure it is set.

If your ISP is blocking ICMP, then you have to ask them. If your ISP provided you the firewall/nat/router appliance, then they should be both able and willing to help you with this. Otherwise consult the operating manual.
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