Как настроить соединение POINT-TO-POINT на CentOS и Debian

Пример /etc/network/interfaces в Debian

iface eth0 inet static
address <IP_ADDR>
netmask 255.255.255.255
gateway <GW_IP_ADDR>
pointopoint <GW_IP_ADDR>

iface eth0 inet static

address <IP_ADDR>

netmask 255.255.255.255

gateway <GW_IP_ADDR>

pointopoint <GW_IP_ADDR>

Можно через ifconfig

ifconfig eth0 inet <local_ip> netmask 255.255.255.255 pointopoint <destination_ip>
ip route add default via <destination_ip>

1 2	ifconfig eth0 inet <local_ip> netmask 255.255.255.255 pointopoint <destination_ip> ip route add default via <destination_ip>

В CentOS чуть сложнее

/etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0 HWADDR=<MAC address> ONBOOT=yes BOOTPROTO=static SCOPE="peer <GW_IP_ADDR>" IPADDR=<IP_ADDR> NETMASK=255.255.255.255

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DEVICE=eth0
HWADDR=<MAC address>
ONBOOT=yes
BOOTPROTO=static
SCOPE="peer <GW_IP_ADDR>"
IPADDR=<IP_ADDR>
NETMASK=255.255.255.255
/etc/sysconfig/network-scripts/route-eth0

ADDRESS0=0.0.0.0 NETMASK0=0.0.0.0 GATEWAY0=<GW_IP_ADDR>

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ADDRESS0=0.0.0.0
NETMASK0=0.0.0.0
GATEWAY0=<GW_IP_ADDR>