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FS#1687 - netifd: Failed to bring up 6rd interface if we modify DHCPv4+dynamic 6rd to DHCPv4+Static 6rd #6673

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openwrt-bot opened this issue Jul 23, 2018 · 0 comments
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alfred.song:

Supply the following if possible:

  • Device problem occurs on
  • Software versions of OpenWrt/LEDE release, packages, etc.

netifd-0f96606b7040b8e14190ff055d5761744bc15f6d

  • Steps to reproduce

Step 1: Create a DHCPv4 + dynamic 6rd wan connection. Below is the /etc/config/network. wan and wan6 go up after “/etc/init.d/network reload”

[CXNK00123457] /lib/netifd/proto # cat /etc/config/network

config interface 'loopback'
option ifname 'lo'
option proto 'static'
option ipaddr '127.0.0.1'
option netmask '255.0.0.0'

config globals 'globals'
option ula_prefix 'auto'

config interface 'lan'
option ifname 'eth0'
option type 'bridge'
option proto 'static'
option ipaddr '192.168.1.1'
option netmask '255.255.255.0'
option ip6assign '64'

config interface 'pvtlan'
option proto 'static'
option ipaddr '169.254.1.1'
option netmask '255.255.255.0'

config interface 'wan'
option ifname 'eth1'
option proto 'dhcp'
option peerdns '1'
option defaultroute '1'
option vendorid '844Ei.ONT.dslforum.org'
option reqopts '43 120 121'
option iface6rd 'wan6'

Step 2: Edit /etc/config/network file, remove dynamic 6rd and provision a static one

[CXNK00123457] /etc/config # cat network

config interface 'loopback'
option ifname 'lo'
option proto 'static'
option ipaddr '127.0.0.1'
option netmask '255.0.0.0'

config globals 'globals'
option ula_prefix 'auto'

config interface 'lan'
option ifname 'eth0'
option type 'bridge'
option proto 'static'
option ipaddr '192.168.1.1'
option netmask '255.255.255.0'
option ip6assign '64'

config interface 'pvtlan'
option proto 'static'
option ipaddr '169.254.1.1'
option netmask '255.255.255.0'

config interface 'wan'
option ifname 'eth1'
option proto 'dhcp'
option peerdns '1'
option defaultroute '1'
option vendorid '844Ei.ONT.dslforum.org'
option reqopts '43 120 121'

config interface 'wan6'
option ifname 'eth1'
option proto '6rd'
option peerdns '0'
option defaultroute '1'
list dns '2001:db8:1::a'
list dns '2001:db8:1::b'
option tunlink 'wan'
option peeraddr '10.101.1.1'
option ip6prefix '2602::'
option ip6prefixlen '32'
option ip4prefixlen '24'

Step 3: Run “/etc/init.d/network reload”. However, netifd failed to bring up the static 6rd tunnel wan6. And there are errors in log, see below

Here is the log of netifd from /var/log/messages. From the log, it seems that netifd was trying to bring up wan6 before wan (DHCPv4) went up. See “netifd: Interface ‘wan6’ is setting up now”. Does this order matter?

[CXNK00123457] /etc/config # /etc/init.d/network reload
Wed Jun 6 06:26:25 2018 daemon.notice netifd: Interface 'wan6' has lost the connection
Wed Jun 6 06:26:25 2018 daemon.warn dnsmasq[19262]: no servers found in /tmp/resolv.conf.auto, will retry
Wed Jun 6 06:26:25 2018 daemon.notice netifd: tunnel '6rd-wan6' link is down
Wed Jun 6 06:26:26 2018 daemon.notice netifd: Interface 'wan6' is now down
Wed Jun 6 06:26:26 2018 daemon.notice netifd: Interface 'wan6' is setting up now
Wed Jun 6 06:26:26 2018 daemon.notice netifd: wan (2641): Received SIGTERM
Wed Jun 6 06:26:26 2018 daemon.notice netifd: Interface 'wan' is now down
Wed Jun 6 06:26:26 2018 daemon.notice netifd: Interface 'wan' is disabled
Wed Jun 6 06:26:26 2018 daemon.notice netifd: Interface 'wan' has link connectivity loss
Wed Jun 6 06:26:26 2018 kern.info kernel: [119305.628866] 8021q: adding VLAN 0 to HW filter on device eth1
Wed Jun 6 06:26:26 2018 kern.info kernel: [119305.630319] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
Wed Jun 6 06:26:26 2018 daemon.notice netifd: Interface 'wan' is enabled
Wed Jun 6 06:26:27 2018 daemon.notice netifd: Interface 'wan6' is now down
Wed Jun 6 06:26:28 2018 daemon.notice netifd: Network device 'eth1' link is up
Wed Jun 6 06:26:28 2018 daemon.notice netifd: Interface 'wan' has link connectivity
Wed Jun 6 06:26:28 2018 daemon.notice netifd: Interface 'wan' is setting up now
Wed Jun 6 06:26:28 2018 kern.info kernel: [119307.631409] e1000: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
Wed Jun 6 06:26:28 2018 kern.info kernel: [119307.632184] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
Wed Jun 6 06:26:29 2018 daemon.notice netifd: wan (3351): udhcpc (v1.23.2) started
=========== interface wan disconnected ===========
Wed Jun 6 06:26:30 2018 daemon.notice netifd: wan (3351): Sending discover...
Wed Jun 6 06:26:31 2018 daemon.notice netifd: wan (3351): Sending select for 10.101.1.100...
Wed Jun 6 06:26:31 2018 daemon.notice netifd: wan (3351): Lease of 10.101.1.100 obtained, lease time 503
Wed Jun 6 06:26:31 2018 daemon.notice netifd: Interface 'wan' is now up
Wed Jun 6 06:26:31 2018 daemon.info dnsmasq[19262]: reading /tmp/resolv.conf.auto
Wed Jun 6 06:26:31 2018 daemon.info dnsmasq[19262]: using local addresses only for domain lan
Wed Jun 6 06:26:31 2018 daemon.info dnsmasq[19262]: using nameserver 10.101.0.1#53
=========== interface wan connected ===========
Wed Jun 6 06:26:31 2018 daemon.notice netifd: wan (3351): rgcommon>sys update-interface-status wan
Wed Jun 6 06:26:32 2018 user.notice firewall: Reloading firewall due to ifup of wan (eth1)

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