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- reach the Internet thanks to NAT translation described in SOHO #004
- reach now their favorite Internet service by name thanks for SOHO #005
- and get IPv4 (or IPv6) address from DHCP server (we took as a switch connected to sdn6)
Requirement- Basic Linux/Unix knowledge
- Service provider networking knowledge
|  Image Modified
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Overview
In the previous articles we describe the hardware in SOHO #001 and initial staging steps in SOHO #002.
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Connect to WIFI via laptop wifi | Code Block |
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| language | bash |
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| theme | Midnight |
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| title | DHCP debug command |
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| debug server dhcp?
dhcp4 - ipv4 dynamic host config protocol
dhcp6 - ipv6 dynamic host config protocol
mjolnir#debug server dhcp4 ?
<cr>
mjolnir#debug server dhcp4
mjolnir#terminal monitor |
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| language | bash |
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| theme | Midnight |
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| title | DHCP debug ouput when connecting laptop @ sdn6 |
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| mjolnir#debug server dhcp4
mjolnir#term mon
mjolnir#info ip.ipCor6.parseIPheader:ipCor6.java:95 got bad version from ::
debug serv.servDhcp4worker.doer:servDhcp4.java:679 rx op=req sec=1 cia=0.0.0.0 yia=0.0.0.0 sia=0.0.0.0 gia=0.0.0.0 cha=88e9.fe76.7f9b srv= fil= op=discover dhcpsrv=null hstnm=MBP-de-Frederic dom=null lease=7776000 renew=0 mask=null gw=null dns1=null dns2=null req=null
debug serv.servDhcp4.sendPack:servDhcp4.java:482 tx 192.168.129.83 op=rep sec=1 cia=0.0.0.0 yia=192.168.129.83 sia=192.168.129.1 gia=0.0.0.0 cha=88e9.fe76.7f9b srv= fil= op=offer dhcpsrv=192.168.129.1 hstnm=null dom=lan lease=43200 renew=21600 mask=255.255.255.0 gw=192.168.129.1 dns1=192.168.254.1 dns2=null req=null
debug serv.servDhcp4worker.doer:servDhcp4.java:686 tx op=rep sec=1 cia=0.0.0.0 yia=192.168.129.83 sia=192.168.129.1 gia=0.0.0.0 cha=88e9.fe76.7f9b srv= fil= op=offer dhcpsrv=192.168.129.1 hstnm=null dom=lan lease=43200 renew=21600 mask=255.255.255.0 gw=192.168.129.1 dns1=192.168.254.1 dns2=null req=null
debug serv.servDhcp4worker.doer:servDhcp4.java:679 rx op=req sec=2 cia=0.0.0.0 yia=0.0.0.0 sia=0.0.0.0 gia=0.0.0.0 cha=88e9.fe76.7f9b srv= fil= op=request dhcpsrv=192.168.129.1 hstnm=MBP-de-Frederic dom=null lease=0 renew=0 mask=null gw=null dns1=null dns2=null req=192.168.129.83
debug serv.servDhcp4.sendPack:servDhcp4.java:482 tx 192.168.129.83 op=rep sec=2 cia=0.0.0.0 yia=192.168.129.83 sia=192.168.129.1 gia=0.0.0.0 cha=88e9.fe76.7f9b srv= fil= op=ack dhcpsrv=192.168.129.1 hstnm=null dom=lan lease=43200 renew=21600 mask=255.255.255.0 gw=192.168.129.1 dns1=192.168.254.1 dns2=null req=null
debug serv.servDhcp4worker.doer:servDhcp4.java:686 tx op=rep sec=2 cia=0.0.0.0 yia=192.168.129.83 sia=192.168.129.1 gia=0.0.0.0 cha=88e9.fe76.7f9b srv= fil= op=ack dhcpsrv=192.168.129.1 hstnm=null dom=lan lease=43200 renew=21600 mask=255.255.255.0 gw=192.168.129.1 dns1=192.168.254.1 dns2=null req=null
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mjolnir# |
So based on the debug output: - DHCP allocated 192.168.129.83
- Primary DNS (dns1) is 192.168.254.1
- Network has /24 CIDR
| Code Block |
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| language | bash |
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| theme | Midnight |
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| title | ARP entries @ hairpin12 |
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| mjolnir#sh ipv4 arp hairpin12
mac address time static
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88e9.fe76.7f9b 192.168.129.83 00:00:13 false
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mjolnir# |
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| title | DHCP check @ mobilewifi client laptop |
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| Code Block |
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| language | bash |
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| theme | Midnight |
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| title | DHCP debug command |
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| ╭─[11/3/20|3:17:21]loui@MacBook-Pro-de-Frederic.local ~
╰─➤ ifconfig en0
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=400<CHANNEL_IO>
ether 88:e9:fe:76:7f:9b
inet6 fe80::1cf1:eacf:9ba9:43c3%en0 prefixlen 64 secured scopeid 0x5
inet 192.168.129.83 netmask 0xffffff00 broadcast 192.168.129.255
inet6 2a01:e0a:159:2857:86:8cf9:a786:8f18 prefixlen 64 autoconf secured
inet6 2a01:e0a:159:2857:904b:4faa:5684:b7a0 prefixlen 64 autoconf temporary
nd6 options=201<PERFORMNUD,DAD>
media: autoselect
status: active
╭─[11/3/20|3:24:08]loui@MacBook-Pro-de-Frederic.local ~
╰─➤ nslookup 212.27.48.10
Server: fd00:2200::1
Address: fd00:2200::1#53
Non-authoritative answer:
10.48.27.212.in-addr.arpa name = www.free.fr.
Authoritative answers can be found from: |
Pay attention to the server that answered ! At the present moment it should not be fd00:2200::1. It is simply because I had a setup with IPv6 fully enabled. |
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