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https://www.cyberciti.biz/faq/how-to-find-out-default-gateway-in-ubuntu/



:A
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# - Requirements - #

a. Old router
b. Internet wire
c. Internet access



:B
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# - Reset old router to factory settings - #

a. Back of router reset button
b. Paper clip hold reset button for 10 seconds



:C
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# - Terminal - #
# - Get gateway number - #

route -n;

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.1.1     0.0.0.0         UG    100    0        0 eno1
0.0.0.0         192.168.1.1     0.0.0.0         UG    600    0        0 wlp4s0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 eno1
192.168.1.0     0.0.0.0         255.255.255.0   U     100    0        0 eno1
192.168.1.0     0.0.0.0         255.255.255.0   U     600    0        0 wlp4s0


route;

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         Fios_Quantum_Ga 0.0.0.0         UG    100    0        0 eno1
default         Fios_Quantum_Ga 0.0.0.0         UG    600    0        0 wlp4s0
link-local      0.0.0.0         255.255.0.0     U     1000   0        0 eno1
192.168.1.0     0.0.0.0         255.255.255.0   U     100    0        0 eno1
192.168.1.0     0.0.0.0         255.255.255.0   U     600    0        0 wlp4s0




ip r | grep ^def

default via 192.168.1.1 dev eno1 proto dhcp metric 100 
default via 192.168.1.1 dev wlp4s0 proto dhcp metric 600





:D
# -  - #
# - Configure new router - #

a. Disconnect laptop from internet
b. Wire laptop to router
c. Firefox
      192.168.1.1 -> Gateway
d. Router admin
          User: admin
      Password: password



:E
# -  - #
# - Wireless settings - #

a. Name (SSID): AccessPoint_1
b.      Region: United States
c.     Channel: Auto
d.        Mode: Up to 300 Mbps
e.    Security: WPA2-PSK [AES]
f.  Passphrase: BBrowne2020-1



:F
# -  - #
# - Very important to change router IP number so doesn't create conflict with main router - #
# - Advanced settings - #

a. LAN Setup
b. Turn off "Use Router as DHCP Server"
c. LAN TCP/IP Setup
       IP Address 192.168.1.250  or  254
d. Save settings & test your new AccessPoint router



:G
# -  - #
# - Guest Network Settings - #

a. Guest Wireless Network Name (SSID): AccessPoint_1Guest
b.                           Security: WPA2-PSK [AES]
c.                         Passphrase: AccessPoint_1Guest



:H
# -  - #
# - Change router password - #

a. Maintenance
b. Set Password
c.     Old password: password
       Set password: BBrowne2020-1
Repeat new password: BBrowne2020-1






# - eof - #