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Opened 2 years ago

Last modified 17 months ago

#20853 new defect

WAN: No DHCP renew on link down/up

Reported by: anonymous Owned by: developers
Priority: normal Milestone:
Component: base system Version: Chaos Calmer 15.05
Keywords: wan dhcp link down up Cc:

Description

Device: TL-WR1043ND V2.1

Switch is:
CPU
Port 1 physical 4 (eth1/br-lan)
Port 2 ... 3
Port 3 ... 2
Port 4 physical 1
Port 5 WAN (eth0)
Port 6 "CPU"
Standard with VLAN 1 & 2

/etc/config/network:
config interface 'wan'

option ifname 'eth0'
option proto 'dhcp'

config interface 'wan6'

option ifname 'eth0'
option proto 'dhcpv6'

Fresh install + software:
openvpn-openssl (as client for site to site tunnel)
fwknopd ("listen" on udp XXXXX for open tcp/XXX)

If I disconnect the CAT-cable from WAN:

Kern/syslog:
kern.info kernel: [42576.860000] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 5 is down
[42576.860000] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 5 is down

Luci => "Network" => "switch" detects "no link" on Port 5

If I reconnect the cable again with an other upstream router
the DHCP lease do not get renewed. So the WAN remains with
the old IP-Addresses (for ever) - I have no connectivity.

It makes no difference if I disconnect or reconnect for 10
seconds or 1 hour, it stays until I manually restart the
interface.

Besides:
Luci shows (since install) for WAN/WAN6 (eth0)
MAC: 00:00:00:00:00:00. ifconfig shows the right MAC.

Expected result:
After disconnect and reconnect the CAT-cable the DHCP
lease should get renewed.
(Luci should show the real MAC)

Actual result:
After disconnect and reconnect the CAT-cable the DHCP
lease stays the same. If upstream changed => no connectivity
(Luci shows MAC: 00:00:00:00:00:00)

Attachments (0)

Change History (1)

comment:1 Changed 17 months ago by anonymous

Any news on this? I experience the same behaviour on my TP-Link Archer C7 v2 with current OpenWrt Chaos Calmer 15.05.1

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