Linux - ZeroConfNetworking - hoyo 學習紀錄

Windows 設定 DHCP 時，沒有 DHCP 服務時會自己產生一個 169.254.x.x 的 IP，Linux 遇到沒有 DHCP 服務除了開機不斷重試浪費時間之外，失敗後什麼 IP 都沒有，導致臨時要使用 IP 連線都沒有辦法。

Linux 該如何在使用 DHCP 卻沒有 DHCP 分配 IP 的情況還可以像 Windows 產生一組 IP ？

參考資源

Windows 使用的是 Zero-configuration networking (zeroconf) 技術， RFC3927 ，Apple Bonjour 也是相同的技術

安裝

# apt-get install avahi-autoipd

1	# apt-get install avahi-autoipd

Hoyo 在 DietPi 上測試時是裝 avahi-autoipd，網路上大多是教安裝 avahi-daemon，實際裝過不知道用途為何

avahi-autoipd 安裝完就完成了，預設設定有一些問題不過問題不大可以正常使用，Hoyo 是打算就這樣使用

實際使用

沒有 DHCP

root@DietPi:~# ifconfig
eth0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether f6:10:e5:d0:32:3a  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 47

eth0:avahi: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 169.254.7.53  netmask 255.255.0.0  broadcast 169.254.255.255
        ether f6:10:e5:d0:32:3a  txqueuelen 1000  (Ethernet)
        device interrupt 47

root@DietPi:~# ifconfig

eth0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500

ether f6:10:e5:d0:32:3a txqueuelen 1000 (Ethernet)

RX packets 0 bytes 0 (0.0 B)

RX errors 0 dropped 0 overruns 0 frame 0

TX packets 0 bytes 0 (0.0 B)

TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

device interrupt 47

eth0:avahi: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500

inet 169.254.7.53 netmask 255.255.0.0 broadcast 169.254.255.255

ether f6:10:e5:d0:32:3a txqueuelen 1000 (Ethernet)

device interrupt 47

接上網路線或是 DHCP 恢復後

root@DietPi:~# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether f6:10:e5:d0:32:3a  txqueuelen 1000  (Ethernet)
        RX packets 16  bytes 1264 (1.2 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3  bytes 726 (726.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 47

root@DietPi:~# ifconfig

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500

ether f6:10:e5:d0:32:3a txqueuelen 1000 (Ethernet)

RX packets 16 bytes 1264 (1.2 KiB)

RX errors 0 dropped 0 overruns 0 frame 0

TX packets 3 bytes 726 (726.0 B)

TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

device interrupt 47

eth0:avahi 網路會消失

設定檔

/etc/dhcp/dhclient-enter-hooks.d/avahi-autoipd

#!/bin/sh

# This file is part of avahi.
#
# avahi is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# avahi is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
# License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with avahi; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA.

case "$reason" in
    MEDIUM|ARPCHECK|ARPSEND|NBI)
        ;;

    PREINIT|BOUND|RENEW|REBIND|REBOOT|STOP|RELEASE)
        if [ -x /usr/sbin/avahi-autoipd ] && /usr/sbin/avahi-autoipd -c $interface; then
            /usr/sbin/avahi-autoipd -k $interface 2> /dev/null
        fi
        ;;

    EXPIRE|FAIL|TIMEOUT)
        # Starting avahi-autoipd is left for the exit hook
        ;;
esac

#!/bin/sh

# This file is part of avahi.

# avahi is free software; you can redistribute it and/or modify it

# under the terms of the GNU Lesser General Public License as

# published by the Free Software Foundation; either version 2 of the

# License, or (at your option) any later version.

# avahi is distributed in the hope that it will be useful, but WITHOUT

# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY

# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public

# License for more details.

# You should have received a copy of the GNU Lesser General Public

# License along with avahi; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307

# USA.

case "$reason" in

MEDIUM|ARPCHECK|ARPSEND|NBI)

;;

if [ -x /usr/sbin/avahi-autoipd ] && /usr/sbin/avahi-autoipd -c $interface; then

/usr/sbin/avahi-autoipd -k $interface 2> /dev/null

;;

EXPIRE|FAIL|TIMEOUT)

# Starting avahi-autoipd is left for the exit hook

;;

esac

問題

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Linux - ZeroConfNetworking

參考資源

安裝

實際使用

設定檔

問題

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Linux - ZeroConfNetworking

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實際使用

設定檔

問題

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