Kein DHCP (IPV4 und IPV6) auf Lan

Nabend!

Ich habe folgendes Problem:
Ich kriege einfach keine Ip Adressen zugewiesen, sobald ich per Lan an den Freifunk Knoten gehe. Diese sind natürlich nicht auf Mesh on Lan eingestellt.

  • Kein Lease, egal ob IPV4 oder IPv6
  • OS und Hardware ist egal, das Problem hatte ich bis jetzt mit eine 1x PS3(FreesBSD), 1x Win10 und 2x Linux Mint 18.1
  • Bis jetzt sind 2 Router in meiner Wolke betroffen: ein TL-WDR3600 (Uplink) und ein 841v7
  • Die Geräte laufen in mein normales Netzwerk einwandfrei.

Hier mal ein Ausschnitt aus den Mint syslog:

Feb 19 21:59:16 bigfat-X682X NetworkManager[1193]: <info>  [1487537956.5132] device (enp2s0): link connected
Feb 19 21:59:16 bigfat-X682X kernel: [ 1386.871423] alx 0000:02:00.0 enp2s0: NIC Up: 1 Gbps Full
Feb 19 21:59:17 bigfat-X682X ntpd[2281]: Listen normally on 24 enp2s0 [fe80::608c:88a9:807b:b435%2]:123
Feb 19 21:59:17 bigfat-X682X ntpd[2281]: new interface(s) found: waking up resolver
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <warn>  [1487537960.7758] dhcp4 (enp2s0): request timed out
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <info>  [1487537960.7759] dhcp4 (enp2s0): state changed unknown -> timeout
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <info>  [1487537960.8081] dhcp4 (enp2s0): canceled DHCP transaction, DHCP client pid 4121
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <info>  [1487537960.8081] dhcp4 (enp2s0): state changed timeout -> done
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <info>  [1487537960.8085] device (enp2s0): state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <info>  [1487537960.8088] manager: NetworkManager state is now DISCONNECTED
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <warn>  [1487537960.8097] device (enp2s0): Activation: failed for connection 'Automatisches Ethernet'
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <info>  [1487537960.8114] device (enp2s0): state change: failed -> disconnected (reason 'none') [120 30 0]
Feb 19 21:59:20 bigfat-X682X avahi-daemon[886]: Withdrawing address record for fe80::608c:88a9:807b:b435 on enp2s0.
Feb 19 21:59:20 bigfat-X682X avahi-daemon[886]: Leaving mDNS multicast group on interface enp2s0.IPv6 with address fe80::608c:88a9:807b:b435.
Feb 19 21:59:20 bigfat-X682X avahi-daemon[886]: Interface enp2s0.IPv6 no longer relevant for mDNS.
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <info>  [1487537960.8209] policy: auto-activating connection 'Automatisches Ethernet'
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <info>  [1487537960.8226] device (enp2s0): Activation: starting connection 'Automatisches Ethernet' (ef6ec20b-0993-4322-83fe-970d459688fe)
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <info>  [1487537960.8229] device (enp2s0): state change: disconnected -> prepare (reason 'none') [30 40 0]
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <info>  [1487537960.8230] manager: NetworkManager state is now CONNECTING
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <info>  [1487537960.8233] device (enp2s0): state change: prepare -> config (reason 'none') [40 50 0]
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <info>  [1487537960.8482] device (enp2s0): state change: config -> ip-config (reason 'none') [50 70 0]
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <info>  [1487537960.8487] dhcp4 (enp2s0): activation: beginning transaction (timeout in 45 seconds)
Feb 19 21:59:20 bigfat-X682X NetworkManager[1193]: <info>  [1487537960.8498] dhcp4 (enp2s0): dhclient started with pid 4153
Feb 19 21:59:20 bigfat-X682X dhclient[4153]: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 3 (xid=0xc26e8d3e)
Feb 19 21:59:22 bigfat-X682X avahi-daemon[886]: Joining mDNS multicast group on interface enp2s0.IPv6 with address fe80::608c:88a9:807b:b435.
Feb 19 21:59:22 bigfat-X682X avahi-daemon[886]: New relevant interface enp2s0.IPv6 for mDNS.
Feb 19 21:59:22 bigfat-X682X avahi-daemon[886]: Registering new address record for fe80::608c:88a9:807b:b435 on enp2s0.*.
Feb 19 21:59:23 bigfat-X682X dhclient[4153]: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 3 (xid=0xc26e8d3e)
Feb 19 21:59:26 bigfat-X682X dhclient[4153]: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 4 (xid=0xc26e8d3e)
Feb 19 21:59:30 bigfat-X682X dhclient[4153]: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 9 (xid=0xc26e8d3e)
Feb 19 21:59:39 bigfat-X682X dhclient[4153]: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 15 (xid=0xc26e8d3e)
Feb 19 21:59:54 bigfat-X682X dhclient[4153]: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 18 (xid=0xc26e8d3e)
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <warn>  [1487538005.7851] dhcp4 (enp2s0): request timed out
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <info>  [1487538005.7851] dhcp4 (enp2s0): state changed unknown -> timeout
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <info>  [1487538005.8173] dhcp4 (enp2s0): canceled DHCP transaction, DHCP client pid 4153
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <info>  [1487538005.8173] dhcp4 (enp2s0): state changed timeout -> done
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <info>  [1487538005.8176] device (enp2s0): state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <info>  [1487538005.8177] manager: NetworkManager state is now DISCONNECTED
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <warn>  [1487538005.8180] device (enp2s0): Activation: failed for connection 'Automatisches Ethernet'
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <info>  [1487538005.8185] device (enp2s0): state change: failed -> disconnected (reason 'none') [120 30 0]
Feb 19 22:00:05 bigfat-X682X avahi-daemon[886]: Withdrawing address record for fe80::608c:88a9:807b:b435 on enp2s0.
Feb 19 22:00:05 bigfat-X682X avahi-daemon[886]: Leaving mDNS multicast group on interface enp2s0.IPv6 with address fe80::608c:88a9:807b:b435.
Feb 19 22:00:05 bigfat-X682X avahi-daemon[886]: Interface enp2s0.IPv6 no longer relevant for mDNS.
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <info>  [1487538005.8221] policy: auto-activating connection 'Automatisches Ethernet'
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <info>  [1487538005.8305] device (enp2s0): Activation: starting connection 'Automatisches Ethernet' (ef6ec20b-0993-4322-83fe-970d459688fe)
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <info>  [1487538005.8308] device (enp2s0): state change: disconnected -> prepare (reason 'none') [30 40 0]
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <info>  [1487538005.8310] manager: NetworkManager state is now CONNECTING
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <info>  [1487538005.8318] device (enp2s0): state change: prepare -> config (reason 'none') [40 50 0]
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <info>  [1487538005.8498] device (enp2s0): state change: config -> ip-config (reason 'none') [50 70 0]
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <info>  [1487538005.8502] dhcp4 (enp2s0): activation: beginning transaction (timeout in 45 seconds)
Feb 19 22:00:05 bigfat-X682X NetworkManager[1193]: <info>  [1487538005.8516] dhcp4 (enp2s0): dhclient started with pid 4171
Feb 19 22:00:05 bigfat-X682X dhclient[4171]: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 3 (xid=0x46620049)
Feb 19 22:00:07 bigfat-X682X avahi-daemon[886]: Joining mDNS multicast group on interface enp2s0.IPv6 with address fe80::608c:88a9:807b:b435.
Feb 19 22:00:07 bigfat-X682X avahi-daemon[886]: New relevant interface enp2s0.IPv6 for mDNS.
Feb 19 22:00:07 bigfat-X682X avahi-daemon[886]: Registering new address record for fe80::608c:88a9:807b:b435 on enp2s0.*.
Feb 19 22:00:08 bigfat-X682X dhclient[4171]: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 6 (xid=0x46620049)
Feb 19 22:00:14 bigfat-X682X dhclient[4171]: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 10 (xid=0x46620049)
Feb 19 22:00:24 bigfat-X682X dhclient[4171]: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 19 (xid=0x46620049)
Feb 19 22:00:43 bigfat-X682X dhclient[4171]: DHCPDISCOVER on enp2s0 to 255.255.255.255 port 67 interval 11 (xid=0x46620049)

Wie kann ich das am Router debugen, bzw. was kann ich da selber nachprüfen? Ich denke es ist eine Firmware Sache, da andere Knoten in der Wolke nicht betoffen sind.

Ich wäre für jede Hilfe dankbar.

Wenn Du Deinem Rechner manuell eine IP statisch zuweist (mutig…), dann funktioniert es?

Ja es geht, und nach ein vollen Reset von den wdr3600 geht es auch mit dhcp wieder. Bei den 841 muss ich noch schauen wenn der Nachbar Zeit hat.

Hi,

zeig mal

brctl show

Grüße
Matthias

Sehr gerne:

Bei den TL-wdr3600 nach ein vollen Reset, Problem behoben:

~# brctl show
bridge name     bridge id               STP enabled     interfaces
br-client               7fff.c04a0038e4da       no              eth0.1
                                                        client0
                                                        client1
                                                        bat0
br-wan          7fff.c24b0038e4da       no              eth0.2

Auf den 841v7, wo das Problem noch besteht und ich erst Morgen dran komme:

~# brctl show
bridge name     bridge id               STP enabled     interfaces
br-client               7fff.90f6525db5ca       no              eth0
                                                        client0
                                                        bat0
br-wan          7fff.92f7525db5ca       no              eth1

Ich werde da morgen ebenfalls ein vollen Reset machen. Wenn es damit auch wieder läuft, wieso auch nicht :slight_smile:

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