Hi all,

While doing a trace for a traceroute command, i realize that the router is actually doing a reverse DNS query for the ip that I am doing the traceroute.

Although this does not impact my traceroute, I can't help to wonder why the need to do the reverse DNS for ?

1    0.000000000    192.168.5.1    255.255.255.255    DNS    84    Standard query 0x2f3e  PTR 2.5.168.192.in-addr.arpa

3    5.750328000    192.168.5.1    255.255.255.255    DNS    84    Standard query 0x2f3e  PTR 2.5.168.192.in-addr.arpa

5    10.828742000    192.168.5.1    192.168.5.2    UDP    60    Source port: 49246  Destination port: 33435

6    10.859994000    192.168.5.2    192.168.5.1    ICMP    70    Destination unreachable (Port unreachable)

Regards,

Noob