So I have this old Raspberry 3A lying around, which isn't equipped with internal wlan. I try to use it as a chicken surveillance cam, therefore I need a working wlan connection as I can't run network cables to the chicken coop. I bought an Edimax USB dongle which uses the rtl8188usb chip and configured my setup via dhcpd.conf:

# A sample configuration for dhcpcd.
# See dhcpcd.conf(5) for details.

# Allow users of this group to interact with dhcpcd via the control socket.
#controlgroup wheel

# Inform the DHCP server of our hostname for DDNS.

# Use the hardware address of the interface for the Client ID.
# or
# Use the same DUID + IAID as set in DHCPv6 for DHCPv4 ClientID as per RFC4361.
# Some non-RFC compliant DHCP servers do not reply with this set.
# In this case, comment out duid and enable clientid above.

# Persist interface configuration when dhcpcd exits.

# Rapid commit support.
# Safe to enable by default because it requires the equivalent option set
# on the server to actually work.
option rapid_commit

# A list of options to request from the DHCP server.
option domain_name_servers, domain_name, domain_search, host_name
# Respect the network MTU. This is applied to DHCP routes.
option interface_mtu

# Most distributions have NTP support.
#option ntp_servers

# A ServerID is required by RFC2131.
require dhcp_server_identifier

# Generate SLAAC address using the Hardware Address of the interface
#slaac hwaddr
# OR generate Stable Private IPv6 Addresses based from the DUID
slaac private

# Example static IP configuration:
#interface eth0
#static ip_address=
#static ip6_address=fd51:42f8:caae:d92e::ff/64
#static routers=
#static domain_name_servers= fd51:42f8:caae:d92e::1

# It is possible to fall back to a static IP if DHCP fails:
# define static profile
interface eth0
static ip_address=
static routers=
static domain_name_servers=

interface wlan0
static ip_address=
static routers=
static domain_name_servers=

ip a:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet scope host lo
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether b8:27:eb:xx:xx:xx brd ff:ff:ff:ff:ff:ff
    inet brd scope global dynamic eth0
       valid_lft 7160sec preferred_lft 5685sec
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 08:be:ac:xx:xx:xx brd ff:ff:ff:ff:ff:ff
    inet brd scope global dynamic noprefixroute wlan0
       valid_lft 6280sec preferred_lft 4906sec

ip r:

default via dev eth0 proto dhcp src metric 202 
default via dev wlan0 proto dhcp src metric 303 dev eth0 proto dhcp scope link src metric 202 dev wlan0 proto dhcp scope link src metric 303 

But, while the static IP for eth0 is working, my wlan0 still gets assigned a random IP from my dhcp-server.

To clarify: I want a statip IP on my wlan0 and at the same time a static IP on eth0.

  • What do ip a & ip r show? – Milliways May 8 '20 at 6:46
  • added into question – bstabens May 8 '20 at 6:53
  • You could try sudo dhclient -v wlan0 and check /var/lib/dhcp/dhclient.leases I assume /etc/network/interfaces is empty. – Milliways May 8 '20 at 7:14
  • /etc/network/interfaces is at default state. The dhclient.leases shows me the successful lease, but the goal is to have the static ip on wlan0, and not a lease. – bstabens May 8 '20 at 7:28
  • Also check 141 is not being used! – user115418 May 8 '20 at 14:13

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