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General Discussion / some pages not loading
« on: December 07, 2019, 11:04:54 pm »
I am very new to firewalls and am hoping someone can help me fix my problem.
I am using OPNsense 19.7-amd64, with unbound dns. I am having an issue where some websites won't load but others will. When I do an nslookup on them they all return the correct name and IP, Even sites that won't load. on the machine I used to test it I ensured DoH was turned off, and there were no dns overrides, or custom settings (and flushed dns, and did a netsock reset). I have tried changing MTU and turning off MTU override off with no luck. I have Lan and Wan MTU set to 1500 without it working (also tried other settings as well) I think the issue is related to IPv6 but I can't seem to track down what isn't working with the requests. I used wireshark and compared web traffic between a working and non working request and didn't notice any differences.
hardware:
Opnsense is connected to a router that is using ipv6
Any feedback is appreciated,
I am using OPNsense 19.7-amd64, with unbound dns. I am having an issue where some websites won't load but others will. When I do an nslookup on them they all return the correct name and IP, Even sites that won't load. on the machine I used to test it I ensured DoH was turned off, and there were no dns overrides, or custom settings (and flushed dns, and did a netsock reset). I have tried changing MTU and turning off MTU override off with no luck. I have Lan and Wan MTU set to 1500 without it working (also tried other settings as well) I think the issue is related to IPv6 but I can't seem to track down what isn't working with the requests. I used wireshark and compared web traffic between a working and non working request and didn't notice any differences.
hardware:
Opnsense is connected to a router that is using ipv6
Any feedback is appreciated,