Neste arquivo contém o um script para se fazer o failover com dois links a partir da documentação oficial no site www.linux.org.

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Esconder código-fonte

#!/bin/bash
######################################################################
#                                                                                                                                                         #
#       Script Failover de 2 Links apartir do www.linux.org                                                                          #
#          Fabiano Belo support_tecnologia@hotmail.com                                                                             #
#                                                                                                                                                         #
######################################################################
######################################################################

##### Desabilitando Filter

echo "Desabilitando o Filter"

echo 0 > /proc/sys/net/ipv4/conf/all/rp_filter
echo 5 > /proc/sys/net/ipv4/route/gc_timeout

echo "Configuracao feita com Sucesso"   

##### Configurando as Interfaces de Rede

echo "Configurando as Interfaces de Rede"

IF1="eth1"
IP1="200.222.222.123"
NET1="200.222.222.120"
GW1="200.2222.222.121"

IF2="eth2"
IP2="201.333.333.123"
NET2="201.333.333.120"
GW2="201.333.333.121"

echo "Configuracao feita com Sucesso"

##### Limpando as Tabelas de Roteamento

echo "Limpando as Tabelas de Roteamento"

ip route flush cache
ip route flush table T1
ip route flush table T2

echo "Configuracao feita com Sucesso"

##### Deletando O gateway default da Tabela main

echo "Deletando o gateway default"

ip route del default

echo "Configuracao feita com Sucesso"

##### Configurando a tabela de Roteamento

echo "Configurando a tabela de Roteamento"

ip route add $NET1 dev $IF1 src $IP1 table T1
ip route add default via $GW1 table T1
ip route add $NET2 dev $IF2 src $IP2 table T2
ip route add default via $GW2 table T2

ip route add $NET1 dev $IF1 src $IP1
ip route add $NET2 dev $IF2 src $IP2

#route del default gw $GW1

ip route add default via $GW2 # Rota de sua preferência

ip route flush cache

echo "Configuracao feita com sucesso"

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