Ubuntu 配置
配置文件
ens33 Link encap:Ethernet HWaddr 00:0c:29:0e:15:94
inet addr:192.168.1.129 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::2d58:5175:4354:3a62/64 Scope:Link
inet6 addr: 2a02:120b:2c4f:1e60:9573:9a86:d356:ad94/64 Scope:Global
inet6 addr: 2a02:120b:2c4f:1e60:4098:7cf5:6187:401a/64 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:151 errors:0 dropped:0 overruns:0 frame:0
TX packets:145 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:13451 (13.4 KB) TX bytes:16919 (16.9 KB)
ens34 Link encap:Ethernet HWaddr 00:0c:29:0e:15:9e
inet addr:10.0.0.1 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe0e:159e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:50 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:5691 (5.6 KB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:237 errors:0 dropped:0 overruns:0 frame:0
TX packets:237 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:17506 (17.5 KB) TX bytes:17506 (17.5 KB)
界面 ubuntu
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto ens34
iface ens34 inet static
address 10.0.0.1
netmask 255.255.255.0
转发端口
net.ipv4.ip_forward = 1
航线
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 100 0 0 ens33
10.0.0.0 0.0.0.0 255.255.255.0 U 0 0 0 ens34
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 ens34
192.168.1.0 0.0.0.0 255.255.255.0 U 100 0 0 ens33
iptables 目录
sudo iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
客户端 PC 配置 - Windows 10 - Lan nic
IP: 10.0.0.2
MASK: 255.255.255.0
Gateway: 10.0.0.1
Dns Server: 10.0.0.1
在 ubuntu 服务器上我可以访问互联网,但从客户端电脑(Windows)使用上述配置却无法访问互联网。
从客户端 Windows PC 对 10.0.0.1 网关进行 ping 操作。
答案1
您需要使用IPTABLES
来完成此操作。您需要将流量从一个接口(您的 10.0.0.1 接口)转发到 192.168.129 接口。
运行以下规则:
#/sbin/iptables -t nat -A POSTROUTING -o ens33 -j MASQUERADE
#/sbin/iptables -A FORWARD -i ens33 -o ens34 -m state --state RELATED,ESTABLISHED -j ACCEPT
#/sbin/iptables -A FORWARD -i ens34 -o ens33 -j ACCEPT