每次 dhcp 服务启动时,它不仅会侦听 0.0.0.0:67,还会侦听 0.0.0.0:PORT,其中 PORT 是随机数。
有谁知道这种行为来自哪里?
root@OpenWrt:/# netstat -ntapue
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 10.0.16.1:22 0.0.0.0:* LISTEN 898/sshd
netstat: /proc/net/tcp6: No such file or directory
udp 0 0 10.0.16.1:514 0.0.0.0:* 922/syslog-ng
udp 0 0 0.0.0.0:60738 0.0.0.0:* 1290/dhcpd
udp 0 0 0.0.0.0:67 0.0.0.0:* 1290/dhcpd
udp 0 0 10.0.16.1:69 0.0.0.0:* 974/tftpd-hpa
netstat: /proc/net/udp6: No such file or directory
Run Code Online (Sandbox Code Playgroud)
我的配置是:
# dhcpd.conf
ddns-updates off;
authoritative;
# don't …Run Code Online (Sandbox Code Playgroud) dhcp-server ×1