Running Freeradius in k8s - No reply from server while the server refuses the auth client

I am trying to deploy a simple freeradius server in an on-prem k8s cluster.

Here is my configuration

Clients file:

root@freeradius-6c7c4d8f68-6x9rg:/# cat /etc/raddb/clients.conf

client all {
  ipaddr = 0.0.0.0
  netmask = 0
  proto = *
  secret = testing123
  nas_type = other
  require_message_authenticator = no
  shortname = all
  limit {
    max_connections = 16
    lifetime = 0
    idle_timeout = 30
  }
}
Users file:

root@freeradius-6c7c4d8f68-6x9rg:/# cat /etc/raddb/users
testuser Cleartext-Password := "testing1234"
      Reply-Message := "Hello, %{User-Name}"
otheruser Cleartext-Password := "blahblah"
      Reply-Message := "Hello, %{User-Name}"
radiusd.conf:

root@freeradius-6c7c4d8f68-6x9rg:/# cat /etc/raddb/radiusd.conf

log {
  destination = files
  file = /var/log/freeradius/radius.log
  syslog_facility = daemon
}
listen {
    type = auth
    ipaddr = *
    port = 1812
}
listen {
    type = acct
    ipaddr = *
    port = 1813
}
listen {
    type = control
    socket = /etc/freeradius/control.sock
    mode = rw
}
Test output:

$ radtest testuser testing1234 radius.myk8s.local:1812 0 testing123
Sent Access-Request Id 158 from 0.0.0.0:38170 to 10.1.6.66:1812 length 78
        User-Name = "testuser"
        User-Password = "testing1234"
        NAS-IP-Address = 192.168.1.128
        NAS-Port = 0
        Message-Authenticator = 0x00
        Cleartext-Password = "testing1234"
Sent Access-Request Id 158 from 0.0.0.0:38170 to 10.1.6.66:1812 length 78
        User-Name = "testuser"
        User-Password = "testing1234"
        NAS-IP-Address = 192.168.1.128
        NAS-Port = 0
        Message-Authenticator = 0x00
        Cleartext-Password = "testing1234"
Sent Access-Request Id 158 from 0.0.0.0:38170 to 10.1.6.66:1812 length 78
        User-Name = "testuser"
        User-Password = "testing1234"
        NAS-IP-Address = 192.168.1.128
        NAS-Port = 0
        Message-Authenticator = 0x00
        Cleartext-Password = "testing1234"
(0) No reply from server for ID 158 socket 3
Server logs:

Listening on auth address * port 1812
Listening on acct address * port 1813
Listening on command file /etc/freeradius/control.sock
Ready to process requests
Ignoring request to auth address * port 1812 from unknown client
10.1.148.201 port 55669 proto udp
Ready to process requests
Ignoring request to auth address * port 1812 from unknown client
10.1.148.201 port 55669 proto udp
Ready to process requests
Ignoring request to auth address * port 1812 from unknown client
10.1.148.201 port 55669 proto udp
Ready to process requests
What am I missing?
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