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IP over DNS, TCP over DNS, IP over ICMP... surely somebody is running a service with all of these for maximum captive portal avoidance?
by danellis 13y ago
IP over DNS, TCP over DNS, IP over ICMP... surely somebody is running a service with all of these for maximum captive portal avoidance?
- kudu 13y agoICMP is often blocked nowadays even when HTTP is allowed, so I don't think IP over ICMP is very useful. It is possible to filter Iodine requests given that they use NULL records, which are inexistent in the real world. Some other well-known tools use TXT, which is a bit more common. TUNS (http://www.loria.fr/~lnussbau/tuns.html http://www.loria.fr/~lnussbau/tuns.html) uses CNAME and respects the DNS standard, which should have near-100% success. It's quite a bit slower though.
- icebraining 13y agoIt is possible to filter Iodine requests given that they use NULL records, which are inexistent in the real world. Iodine actually also uses TXT, SRV, MX, CNAME and A, in this order, if it detects that the better choices are blocked.