I have an issue on DNS service that I’m not able to resolve.
The DNS service is not able to resolve some dns name and I’ve notice that it’s could be related to the UDP packet size.
Now I’ve try to change the max-udp-packet-size accoding the MTU size of my connection but nothing is changed.
Do you have any suggestion?
–
Many thanks!
Francesco.
[ogekuri@crs] > ping www.google.com
SEQ HOST SIZE TTL TIME STATUS
0 172.217.21.68 56 58 21ms
1 172.217.21.68 56 58 26ms
sent=2 received=2 packet-loss=0% min-rtt=21ms avg-rtt=23ms max-rtt=26ms
[ogekuri@crs] > ping docs.google.com
invalid value for argument address:
invalid value of mac-address, mac address required
invalid value for argument ipv6-address
while resolving ip-address: could not get answer from dns server
[ogekuri@crs] /ip dns> print
servers: 8.8.8.8,8.8.4.4
dynamic-servers:
allow-remote-requests: yes
max-udp-packet-size: 1480
query-server-timeout: 2s
query-total-timeout: 10s
max-concurrent-queries: 100
max-concurrent-tcp-sessions: 20
cache-size: 4096KiB
cache-max-ttl: 2h
cache-used: 371KiB
IN