KVM 的 Bridge tune 很久還是 tune 不通 orz
最後跟 Apua 借了兩台 VM
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DHCP
# whereis isc-dhcp42-server
isc-dhcp42-server: /usr/ports/net/isc-dhcp42-server
請一邊服用 Handbook 說明
先改 dhcpd.conf 設定檔
# vim /usr/local/etc/dhcpd.conf
option domain-name "example.org";
option domain-name-servers 10.0.0.5; # 我自己的 IP
option subnet-mask 255.255.255.0;
default-lease-time 600;
max-lease-time 7200;
subnet 10.0.0.0 netmask 255.255.255.0 { # 要 Listen 的 subnet
range 10.0.0.10 10.0.0.20; # 發這段出去
option routers 10.0.0.5; # 從我家流出去
}
host ftp { # 定義一組 host <=> MAC <=> static IP
hardware ethernet 00:50:56:b4:01:4c;
fixed-address 10.0.0.14;
}
改 /etc/rc.conf
#vim /etc/rc.conf
# for NAT
pf_enable="YES"
pflog_enable="YES"
gateway_enable="YES"
# 要 listen 的網卡的 interface 設好
ifconfig_em1="inet 10.0.0.5 netmask 255.255.255.0"
# 開啟 dhcpd
dhcpd_enable="YES"
# 要 listen 這張
dhcpd_ifaces="em1"
dhcpd_conf="/usr/local/etc/dhcpd.conf"
dhcpd_withumask="022"
最後一步,開啟服務
# /usr/local/etc/rc.d/isc-dhcpd start
error log in /var/log/messages
要 listen 的 subnet 跟發出去的 range 要一樣,我卡這關卡好久XD
NAT
這裡用 pf 來設,handbook 上面是用另一套 ipfw
在 pf.conf 裏面加上
#vim /etc/pf.conf
ext_if="em0" # 接外網
int_if="em1" # 接內網
ext_ip="my public IP" # public IP
int_ip="10.0.0.5" # DHCP 發的
lan_net="10.0.0.0/24" # subnet
nat on $ext_if from { $lan_net } to any -> ($ext_if)
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