Delay during FTP installation before ftp hostname is resolving

Hello there.

I installed 5.2.1-RC2 through FTP and I noticed that there was a long
delay between sysinstall reported that it is trying to resolv FTP
hostname and this hostname is actually resolving. During the
installation I answered "No" to following two questions:

Do you want to try IPv6 configuration of the interface?
Do you want to try DHCP configuration of the interface?

Then I configured the NIC manually with following parameters:

Host: localhost
IPv4 Gateway: 192.168.1.1
Name server: 192.114.47.4
IPv4 address: 192.168.1.4
Netmask: 255.255.255.0

This is the topology of my network:

[Internet]---[ISP and 192.114.47.4]--ADSL--[192.168.1.1]---[192.168.1.4]

I ran Ethereal on the 192.168.1.1 host and this is a short summary of
this running:

No. Time        Source                Destination           Protocol Info
   1 0.000000    00:01:02:ae:e8:7d     ff:ff:ff:ff:ff:ff     ARP      Who has 192.168.1.4?  Tell 192.168.1.4
   2 0.017000    fe80::201:2ff:feae:e87d ff02::1:ffae:e87d     ICMPv6   Multicast listener report
   3 0.017000    fe80::201:2ff:feae:e87d ff02::2:65d0:d71e     ICMPv6   Multicast listener report
   4 0.057000    00:01:02:ae:e8:7d     ff:ff:ff:ff:ff:ff     ARP      Who has 192.168.1.1?  Tell 192.168.1.4
   5 0.057000    00:01:02:1e:bc:a0     00:01:02:ae:e8:7d     ARP      192.168.1.1 is at 00:01:02:1e:bc:a0
   6 1.000000    ::                    ff02::1:ffae:e87d     ICMPv6   Neighbor solicitation
   7 3.609000    fe80::201:2ff:feae:e87d ff02::1:ffae:e87d     ICMPv6   Multicast listener report
   8 5.609000    fe80::201:2ff:feae:e87d ff02::2:65d0:d71e     ICMPv6   Multicast listener report
   9 150.035000  00:01:02:ae:e8:7d     ff:ff:ff:ff:ff:ff     ARP      Who has 192.168.1.1?  Tell 192.168.1.4
  10 150.035000  00:01:02:1e:bc:a0     00:01:02:ae:e8:7d     ARP      192.168.1.1 is at 00:01:02:1e:bc:a0
  11 150.036000  192.168.1.4           192.114.47.4          DNS      Standard query A ftp2.freebsd.org
  12 150.498000  192.114.47.4          192.168.1.4           DNS      Standard query response CNAME ftp2.us.freebsd.org A 130.94.149.162


Why there was this delay and is it possibly to fix it?
Why IPv6/ICMPv6 is used although I didn't configure the NIC with IPv6?