vitorsemeano
New Around Here
Hi, i have a RT-AX58U as the main router, and also a RT-AC68U as node using aimesh. The main router receives internet from a modem provided by my ISP through WAN.
I have a machine with ubuntu server, and for some time i have noticed a delay when using the command ping with any domain. The delay is approximately 5 seconds. I searched for this pattern on the internet and i found out that this is a timeout produced by an internal function, that fetches A and AAAA requests for the given domain name, but instead of getting 2 replies, he only gets 1 reply for the A request.
I also searched for resolutions to this problem, and this is related with misconfigured dns server or firewall rules that block this kind of requests. I also entered in the router via ssh, and the same behavior happens, the same 5 second delay.
My ISP still doesn't provide ipv6 support. I also configured google dns servers, in wan section (8.8.8.8, 8.8.4.4).
In my ubuntu server i didn't touch dns configurations, so i assume it's using the one provided by the router (192.168.1.1 and then redirects to the google one i think).
At this point i am at a lost, because i am not sure where is the problem. I don't know if this is a limitation of the router itself (I am using latest asus merlin firmware), in it's dnsmasq config, if is a rule set in the firewall of the router, or if the problem is in the isp side.
Since i am kind of a noob in networking, i am asking for an opinion in this matter, so i can identify the problem and fix it, if possible.
Anything that i can provide to help in this matter, just ask.
Thanks
I have a machine with ubuntu server, and for some time i have noticed a delay when using the command ping with any domain. The delay is approximately 5 seconds. I searched for this pattern on the internet and i found out that this is a timeout produced by an internal function, that fetches A and AAAA requests for the given domain name, but instead of getting 2 replies, he only gets 1 reply for the A request.
I also searched for resolutions to this problem, and this is related with misconfigured dns server or firewall rules that block this kind of requests. I also entered in the router via ssh, and the same behavior happens, the same 5 second delay.
My ISP still doesn't provide ipv6 support. I also configured google dns servers, in wan section (8.8.8.8, 8.8.4.4).
In my ubuntu server i didn't touch dns configurations, so i assume it's using the one provided by the router (192.168.1.1 and then redirects to the google one i think).
At this point i am at a lost, because i am not sure where is the problem. I don't know if this is a limitation of the router itself (I am using latest asus merlin firmware), in it's dnsmasq config, if is a rule set in the firewall of the router, or if the problem is in the isp side.
Since i am kind of a noob in networking, i am asking for an opinion in this matter, so i can identify the problem and fix it, if possible.
Anything that i can provide to help in this matter, just ask.
Thanks
