DOCSIS i-cable external blocking?

本帖最後由 adfsasdfawfeewf 於 2015-7-30 21:13 編輯

I am unable to ping my router from outside, traceroute dies at (, possibly at the CMTS.

From icmp_seq=423 Packet filtered

ICMP rate limiting in effect

And I can't connect to any port on the router, even 1024+. Is i-cable running some kind of stateful firewall? Then what's the point of having a public IP address?

It worked fine before. I think the change happened in some time between June and July. Anyone got the same experience?