I replaced by FIOS router with RT-AC87 becouse Verizon router had TTL of 10s for hostnames registered with local DNS which was too low becouse I have a lot of chatty applications (like webcams etc) on local network. I was fully expected something more managable from Asus and expensive router but to my surprise TTL for internal hostnames from ASUS router is ridicilous zero seconds.
That means every single time any of internal clients will try to talk to any other internal client it will have to make DNS query. Pretty dissappointed and wondering if it's somehow configurable or who do I raise this issue to.
Server: router.asus.com
Address: 192.168.1.1
------------
Got answer:
HEADER:
opcode = QUERY, id = 2, rcode = NOERROR
header flags: response, auth. answer, want recursion, recursion avail.
questions = 1, answers = 1, authority records = 0, additional = 0
QUESTIONS:
zyxel.artisticcheese.com, type = A, class = IN
ANSWERS:
-> zyxel.myhome.com
internet address = 192.168.1.37
ttl = 0 (0 secs)
------------
------------
Got answer:
HEADER:
opcode = QUERY, id = 3, rcode = NOERROR
header flags: response, want recursion, recursion avail.
questions = 1, answers = 0, authority records = 0, additional = 0
QUESTIONS:
zyxel.myhome.com, type = AAAA, class = IN
That means every single time any of internal clients will try to talk to any other internal client it will have to make DNS query. Pretty dissappointed and wondering if it's somehow configurable or who do I raise this issue to.
Server: router.asus.com
Address: 192.168.1.1
------------
Got answer:
HEADER:
opcode = QUERY, id = 2, rcode = NOERROR
header flags: response, auth. answer, want recursion, recursion avail.
questions = 1, answers = 1, authority records = 0, additional = 0
QUESTIONS:
zyxel.artisticcheese.com, type = A, class = IN
ANSWERS:
-> zyxel.myhome.com
internet address = 192.168.1.37
ttl = 0 (0 secs)
------------
------------
Got answer:
HEADER:
opcode = QUERY, id = 3, rcode = NOERROR
header flags: response, want recursion, recursion avail.
questions = 1, answers = 0, authority records = 0, additional = 0
QUESTIONS:
zyxel.myhome.com, type = AAAA, class = IN