14.04用2张网卡共享因特网
14.04用2张网卡共享因特网
提问于 2015-04-29 19:22:34
我使用Ubuntu14.04 32位
我有以下问题，我必须共享互联网:1互联网服务器(eth1) 1转发互联网与其他网卡(这是机器需要配置- eth2)个人电脑客户。
Internet附带到服务器的网络电缆，而另一张网卡则转到为微客户端分发的交换机上。
问题是:我如何获得一张网卡并分发另一张？
谢谢你的进阶。
请看我的赛斯日志
May 7 10:40:37 asterisk dhcpd: options subnet-mask
May 7 10:40:37 asterisk dhcpd: ^
May 7 10:40:37 asterisk dhcpd: /etc/dhcp/dhcpd.conf line 6: semicolon expected.
May 7 10:40:37 asterisk dhcpd: options broadcast-address
May 7 10:40:37 asterisk dhcpd: ^
May 7 10:40:37 asterisk dhcpd: /etc/dhcp/dhcpd.conf line 7: semicolon expected.
May 7 10:40:37 asterisk dhcpd: options routers
May 7 10:40:37 asterisk dhcpd: ^
May 7 10:40:37 asterisk dhcpd: /etc/dhcp/dhcpd.conf line 8: semicolon expected.
May 7 10:40:37 asterisk dhcpd: options domain-name-servers
May 7 10:40:37 asterisk dhcpd: ^
May 7 10:40:37 asterisk dhcpd: /etc/dhcp/dhcpd.conf line 9: semicolon expected.
May 7 10:40:37 asterisk dhcpd: options domain-name
May 7 10:40:37 asterisk dhcpd: ^
May 7 10:40:37 asterisk dhcpd: Configuration file errors encountered -- exiting
May 7 10:40:37 asterisk dhcpd: Internet Systems Consortium DHCP Server 4.2.2
May 7 10:40:37 asterisk dhcpd: Copyright 2004-2011 Internet Systems Consortium.
May 7 10:40:37 asterisk dhcpd: All rights reserved.
May 7 10:40:37 asterisk dhcpd: For info, please visit https://www.isc.org/software/dhcp/
May 7 10:40:37 asterisk dhcpd: /etc/dhcp/dhcpd.conf line 5: semicolon expected.
May 7 10:40:37 asterisk dhcpd: options subnet-mask
May 7 10:40:37 asterisk dhcpd: ^
May 7 10:40:37 asterisk dhcpd: /etc/dhcp/dhcpd.conf line 6: semicolon expected.
May 7 10:40:37 asterisk dhcpd: options broadcast-address
May 7 10:40:37 asterisk dhcpd: ^
May 7 10:40:37 asterisk dhcpd: /etc/dhcp/dhcpd.conf line 7: semicolon expected.
May 7 10:40:37 asterisk dhcpd: options routers
May 7 10:40:37 asterisk dhcpd: ^
May 7 10:40:37 asterisk dhcpd: /etc/dhcp/dhcpd.conf line 8: semicolon expected.
May 7 10:40:37 asterisk dhcpd: options domain-name-servers
May 7 10:40:37 asterisk dhcpd: ^
May 7 10:40:37 asterisk dhcpd: /etc/dhcp/dhcpd.conf line 9: semicolon expected.
May 7 10:40:37 asterisk dhcpd: options domain-name
May 7 10:40:37 asterisk dhcpd: ^
May 7 10:40:37 asterisk dhcpd: Configuration file errors encountered -- exiting
May 7 10:40:49 asterisk dhcpd: Wrote 0 leases to leases file.
May 7 10:40:49 asterisk dhcpd:
May 7 10:40:49 asterisk dhcpd: No subnet declaration for eth2 (no IPv4 addresses).
May 7 10:40:49 asterisk dhcpd: ** Ignoring requests on eth2. If this is not what
May 7 10:40:49 asterisk dhcpd: you want, please write a subnet declaration
May 7 10:40:49 asterisk dhcpd: in your dhcpd.conf file for the network segment
May 7 10:40:49 asterisk dhcpd: to which interface eth2 is attached. **
May 7 10:40:49 asterisk dhcpd:
May 7 10:40:49 asterisk dhcpd:
May 7 10:40:49 asterisk dhcpd: Not configured to listen on any interfaces!回答 1
Ask Ubuntu用户
回答已采纳
发布于 2015-04-30 07:45:06
首先要做的是启用IP转发。这要么是通过
echo "1" > /proc/sys/net/ipv4/ip_forward然后，我们将添加一个规则通知来转发流量。
iptables -A FORWARD -i eth1 -o eth0 -j ACCEPT
iptables -A FORWARD -i eth0 -o eth1 -m state --state ESTABLISHED,RELATED -j ACCEPT最后，我们请IPtables伪装
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE编辑1
安装
sudo apt-get install isc-dhcp-server配置
sudo nano -w /etc/dhcp/dhcpd.conf
# Sample /etc/dhcpd.conf
# (add your comments here)
default-lease-time 600;
max-lease-time 7200;
option subnet-mask 255.255.255.0;
option broadcast-address 192.168.1.255;
option routers 192.168.1.254;
option domain-name-servers 192.168.1.1, 192.168.1.2;
option domain-name "mydomain.example";
subnet 192.168.1.0 netmask 255.255.255.0 {
range 192.168.1.10 192.168.1.100;
range 192.168.1.150 192.168.1.200;
} 重新启动服务
sudo service isc-dhcp-server restart页面原文内容由Ask Ubuntu提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://askubuntu.com/questions/616039
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