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использование_двух_isp
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использование_двух_isp [2012/02/02 11:34] val |
использование_двух_isp [2017/09/20 12:53] val [Использование двух ISP] |
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| ====== Использование двух ISP ====== | ====== Использование двух ISP ====== | ||
| - | ===== Исходная настройка стенда ===== | + | * [[http://www.anticisco.ru/blogs/2011/05/введение-в-cisco-oerpfr/|Введение в Cisco OER/PfR]] |
| - | <code> | + | |
| - | router(config)#ip name-server 172.16.1.254 | + | |
| - | router(config)#ip name-server 172.16.2.254 | + | |
| - | + | ||
| - | router(config)#ip dhcp pool LAN | + | |
| - | router(dhcp-config)#dns-server 172.16.1.254 172.16.2.254 | + | |
| - | + | ||
| - | server# cat /etc/resolv.conf | + | |
| - | </code><code> | + | |
| - | search corpX.un | + | |
| - | nameserver 172.16.1.254 | + | |
| - | nameserver 172.16.2.254 | + | |
| - | </code> | + | |
| ===== Настройка роутера на использование двух провайдеров ===== | ===== Настройка роутера на использование двух провайдеров ===== | ||
| <code> | <code> | ||
| + | interface FastEthernet0/0 | ||
| + | description connect to ISP2 | ||
| + | duplex full | ||
| + | ip address 172.16.2.X 255.255.255.0 | ||
| + | ip nat outside | ||
| + | no shutdown | ||
| + | |||
| + | ip name-server 172.16.2.254 | ||
| + | |||
| ip access-list standard ACL_REDIRECT_ISP1 | ip access-list standard ACL_REDIRECT_ISP1 | ||
| permit 192.168.X.0 0.0.0.255 | permit 192.168.X.0 0.0.0.255 | ||
| ip access-list standard ACL_REDIRECT_ISP2 | ip access-list standard ACL_REDIRECT_ISP2 | ||
| permit 192.168.100+X.0 0.0.0.255 | permit 192.168.100+X.0 0.0.0.255 | ||
| + | |||
| + | no ip nat inside source list ACL_NAT interface FastEthernet1/1 overload | ||
| ip nat inside source list ACL_REDIRECT_ISP1 interface FastEthernet1/1 overload | ip nat inside source list ACL_REDIRECT_ISP1 interface FastEthernet1/1 overload | ||
| Line 36: | Line 34: | ||
| interface FastEthernet1/0 | interface FastEthernet1/0 | ||
| - | description connetc to LAN | ||
| - | ip address 192.168.X.1 255.255.255.0 | ||
| - | ip nat inside | ||
| ip policy route-map RM_REDIRECT_ISP | ip policy route-map RM_REDIRECT_ISP | ||
| - | |||
| - | interface FastEthernet1/1 | ||
| - | description connect to ISP1 | ||
| - | ip address 172.16.1.X 255.255.255.0 | ||
| - | ip nat outside | ||
| - | |||
| - | interface FastEthernet0/0 | ||
| - | description connect to ISP2 | ||
| - | ip address 172.16.2.X 255.255.255.0 | ||
| - | ip nat outside | ||
| </code> | </code> | ||
| Line 100: | Line 85: | ||
| ==== Переключение в ручном режиме ==== | ==== Переключение в ручном режиме ==== | ||
| <code> | <code> | ||
| - | server# rsh router "clear ip nat tr *" | + | cat /etc/resolv.conf |
| + | </code><code> | ||
| + | ... | ||
| + | nameserver 172.16.1.254 | ||
| + | nameserver 172.16.2.254 | ||
| + | </code><code> | ||
| + | cat /etc/hosts | ||
| + | </code><code> | ||
| + | ... | ||
| + | 192.168.X.1 router | ||
| + | </code><code> | ||
| server# rcp isp1.cfg router:running-config | server# rcp isp1.cfg router:running-config | ||
| Line 107: | Line 101: | ||
| server# rcp isp1_isp2.cfg router:running-config | server# rcp isp1_isp2.cfg router:running-config | ||
| + | |||
| + | server# rsh router "clear ip nat tr *" | ||
| </code> | </code> | ||
| Line 157: | Line 153: | ||
| echo $conf_name > /tmp/conf_name | echo $conf_name > /tmp/conf_name | ||
| + | |||
| + | rcp /root/$conf_name router:running-config | ||
| rsh router "clear ip nat tr *" | rsh router "clear ip nat tr *" | ||
| - | rcp /root/$conf_name router:running-config | ||
| exit 0 | exit 0 | ||
| </code><code> | </code><code> | ||
| + | server# chmod +x select_isp.sh | ||
| + | |||
| + | server# echo isp1_isp2.cfg > /tmp/conf_name | ||
| + | |||
| server# crontab -e | server# crontab -e | ||
| </code><code> | </code><code> | ||
| */5 * * * * /root/select_isp.sh | */5 * * * * /root/select_isp.sh | ||
| </code> | </code> | ||
| - | |||
использование_двух_isp.txt · Last modified: 2017/09/20 13:30 by val
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