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titleConfigure DNS into DHCP to propogate default "local" zone

Step -4-, configure DNS and DHCP to propagate default dummy zone local

  • Use local if you don't plan to propagate a domain name
  • create local as dummy zone


Code Block
languagebash
themeMidnight
titlePropagate "local" zone
!
server dhcp4 dh4-inet
 dns-server 192.168.254.1
 domain-name local
 exit
!
server dns ns-inet
 zone local
 exit
!


Verification

Expand
titlestep -1- and step -2- outcomes

When -1- and -2- are realised the router can resolve name

Code Block
languagebash
themeMidnight
titleDNS resolution from CLI (DNS query originated by router)
ping www.free.fr /vrf inet                                             
pinging 212.27.48.10, src=null, vrf=inet, cnt=5, len=64, tim=1000, ttl=255, tos=0, sweep=false
!!!!!
result=100%, recv/sent/lost=5/5/0, rtt min/avg/max/total=3/3/4/16



Expand
titlestep -3- and step -4- outcomes

This can be verified only using a host connected to SOHO router. Let's assume a laptop connected behind sdn6.

Code Block
languagebash
themeMidnight
titleping & ping6 hostname
...
╭─[10/31/20|3:01:19]loui@MacBook-Pro-de-Frederic.local ~  
╰─➤  ping www.free.fr
PING www.free.fr (212.27.48.10): 56 data bytes
64 bytes from 212.27.48.10: icmp_seq=0 ttl=57 time=3.670 ms
64 bytes from 212.27.48.10: icmp_seq=1 ttl=57 time=6.666 ms
64 bytes from 212.27.48.10: icmp_seq=2 ttl=57 time=6.163 ms
64 bytes from 212.27.48.10: icmp_seq=3 ttl=57 time=6.118 ms
^C
--- www.free.fr ping statistics ---
4 packets transmitted, 4 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 3.670/5.654/6.666/1.166 ms
╭─[10/31/20|3:40:12]loui@MacBook-Pro-de-Frederic.local ~  
╰─➤  ping6 www.free.fr
PING6(56=40+8+8 bytes) 2a01:e0a:159:2857:b9d9:e9e0:ae30:88e5 --> 2a01:e0c:1::1
16 bytes from 2a01:e0c:1::1, icmp_seq=0 hlim=56 time=3.805 ms
16 bytes from 2a01:e0c:1::1, icmp_seq=1 hlim=56 time=6.898 ms
16 bytes from 2a01:e0c:1::1, icmp_seq=2 hlim=56 time=5.868 ms
16 bytes from 2a01:e0c:1::1, icmp_seq=3 hlim=56 time=5.729 ms
^C
--- www.free.fr ping6 statistics ---
4 packets transmitted, 4 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 3.805/5.575/6.898/1.117 ms

...


Code Block
languagebash
themeMidnight
titleIPv4 / IPv6 name resolution
...
╭─[10/31/20|3:42:11]loui@MacBook-Pro-de-Frederic.local ~  
╰─➤  dig www.free.fr                                                                                                                                                127 ↵

; <<>> DiG 9.10.6 <<>> www.free.fr
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 25030
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.free.fr.                   IN      A

;; ANSWER SECTION:
www.free.fr.            20961   IN      A       212.27.48.10

;; Query time: 21 msec
;; SERVER: 192.168.254.1#53(192.168.254.1)
;; WHEN: Sat Oct 31 15:42:18 CET 2020
;; MSG SIZE  rcvd: 56

╭─[10/31/20|3:42:18]loui@MacBook-Pro-de-Frederic.local ~  
╰─➤  dig AAAA www.free.fr  

; <<>> DiG 9.10.6 <<>> AAAA www.free.fr
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21770
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.free.fr.                   IN      AAAA

;; ANSWER SECTION:
www.free.fr.            21075   IN      AAAA    2a01:e0c:1::1

;; Query time: 5 msec
;; SERVER: 192.168.254.1#53(192.168.254.1)
;; WHEN: Sat Oct 31 15:42:29 CET 2020
;; MSG SIZE  rcvd: 68
...


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