YAMAHA RTX VRRP

YAMAHA RTXルータ VRRPでWAN回線の冗長化

寄稿しました。

Router1

LAN1:192.168.100.1
バーチャルIP:192.168.100.254
WAN:LAN2

ip route default gateway dhcp lan2
ip lan1 address 192.168.100.1/24
ip lan1 vrrp 1 192.168.100.254 priority=200
ip lan1 vrrp shutdown trigger 1 lan2
ip lan2 address dhcp
ip lan2 nat descriptor 1
nat descriptor type 1 masquerade
nat descriptor address outer 1 primary

Router2

LAN1:192.168.100.2
バーチャルIP:192.168.100.254
WAN:LAN2

ip route default gateway dhcp lan2
ip lan1 address 192.168.100.2/24
ip lan1 vrrp 1 192.168.100.254 priority=100
ip lan1 vrrp shutdown trigger 1 lan2
ip lan2 address dhcp
ip lan2 nat descriptor 1
nat descriptor type 1 masquerade
nat descriptor address outer 1 primary

クライアントPC

IP:192.168.100.51
ネットマスク：255.255.255.0
デフォルトゲートウェイ：192.168.100.254
DNS1:192.168.11.254
DNS2:8.8.8.8

デフォルトゲートウェイにバーチャルIPを設定してあげるのがポイントです。

複数VIPの場合

Router1
LAN1:192.168.110.1
VIP:192.168.110.241, 192.168.110.242
LAN2:172.16.0.1
VIP:172.16.0.241, 172.16.0.242
Router2
LAN1:192.168.110.2
VIP:192.168.110.243, 192.168.110.244
LAN2:172.16.0.2
VIP:172.16.0.243, 172.16.0.244
Router3
LAN1192.168.110.3
VIP:192.168.110.245, 172.16.0.246
LAN2:172.16.0.3
VIP:172.16.0.245, 172.16.0.246

Router1

ip route default gateway dhcp lan3
ip lan1 address 192.168.110.1/24
ip lan1 vrrp 1 192.168.110.241 priority=100
ip lan1 vrrp 2 192.168.110.242 priority=100
ip lan1 vrrp 3 192.168.110.243 priority=200
ip lan1 vrrp 4 192.168.110.244 priority=200
ip lan1 vrrp 5 192.168.110.245 priority=100
ip lan1 vrrp 6 192.168.110.246 priority=100

ip lan2 address 172.16.0.1/24
ip lan2 vrrp 21 172.16.0.241 priority=200
ip lan2 vrrp 22 172.16.0.242 priority=200
ip lan2 vrrp 23 172.16.0.243 priority=100
ip lan2 vrrp 24 172.16.0.244 priority=100
ip lan2 vrrp 25 172.16.0.245 priority=100
ip lan2 vrrp 26 172.16.0.246 priority=100
ip lan1 vrrp shutdown trigger 1 lan3
ip lan1 vrrp shutdown trigger 2 lan3
ip lan1 vrrp shutdown trigger 3 lan3
ip lan1 vrrp shutdown trigger 4 lan3
ip lan1 vrrp shutdown trigger 5 lan3
ip lan1 vrrp shutdown trigger 6 lan3
ip lan2 vrrp shutdown trigger 21 lan3
ip lan2 vrrp shutdown trigger 22 lan3
ip lan2 vrrp shutdown trigger 23 lan3
ip lan2 vrrp shutdown trigger 24 lan3
ip lan2 vrrp shutdown trigger 25 lan3
ip lan2 vrrp shutdown trigger 26 lan3

ip lan3 address dhcp
ip lan3 nat descriptor 1
nat descriptor type 1 masquerade
nat descriptor address outer 1 primary

Router2

ip route default gateway dhcp lan3
ip lan1 address 192.168.110.2/24
ip lan1 vrrp 1 192.168.110.241 priority=100
ip lan1 vrrp 2 192.168.110.242 priority=100
ip lan1 vrrp 3 192.168.110.243 priority=200
ip lan1 vrrp 4 192.168.110.244 priority=200
ip lan1 vrrp 5 192.168.110.245 priority=100
ip lan1 vrrp 6 192.168.110.246 priority=100

ip lan2 address 172.16.0.2/24
ip lan2 vrrp 21 172.16.0.241 priority=100
ip lan2 vrrp 22 172.16.0.242 priority=100
ip lan2 vrrp 23 172.16.0.243 priority=200
ip lan2 vrrp 24 172.16.0.244 priority=200
ip lan2 vrrp 25 172.16.0.245 priority=100
ip lan2 vrrp 26 172.16.0.246 priority=100
ip lan1 vrrp shutdown trigger 1 lan3
ip lan1 vrrp shutdown trigger 2 lan3
ip lan1 vrrp shutdown trigger 3 lan3
ip lan1 vrrp shutdown trigger 4 lan3
ip lan1 vrrp shutdown trigger 5 lan3
ip lan1 vrrp shutdown trigger 6 lan3
ip lan2 vrrp shutdown trigger 21 lan3
ip lan2 vrrp shutdown trigger 22 lan3
ip lan2 vrrp shutdown trigger 23 lan3
ip lan2 vrrp shutdown trigger 24 lan3
ip lan2 vrrp shutdown trigger 25 lan3
ip lan2 vrrp shutdown trigger 26 lan3

ip lan3 address dhcp
ip lan3 nat descriptor 1
nat descriptor type 1 masquerade
nat descriptor address outer 1 primary

Router3

ip route default gateway dhcp lan3
ip lan1 address 192.168.110.3/24
ip lan1 vrrp 1 192.168.110.241 priority=100
ip lan1 vrrp 2 192.168.110.242 priority=100
ip lan1 vrrp 3 192.168.110.243 priority=100
ip lan1 vrrp 4 192.168.110.244 priority=100
ip lan1 vrrp 5 192.168.110.245 priority=200
ip lan1 vrrp 6 192.168.110.246 priority=200

ip lan2 address 172.16.0.3/24
ip lan2 vrrp 21 172.16.0.241 priority=100
ip lan2 vrrp 22 172.16.0.242 priority=100
ip lan2 vrrp 23 172.16.0.243 priority=100
ip lan2 vrrp 24 172.16.0.244 priority=100
ip lan2 vrrp 25 172.16.0.245 priority=200
ip lan2 vrrp 26 172.16.0.246 priority=200
ip lan1 vrrp shutdown trigger 1 lan3
ip lan1 vrrp shutdown trigger 2 lan3
ip lan1 vrrp shutdown trigger 3 lan3
ip lan1 vrrp shutdown trigger 4 lan3
ip lan1 vrrp shutdown trigger 5 lan3
ip lan1 vrrp shutdown trigger 6 lan3
ip lan2 vrrp shutdown trigger 21 lan3
ip lan2 vrrp shutdown trigger 22 lan3
ip lan2 vrrp shutdown trigger 23 lan3
ip lan2 vrrp shutdown trigger 24 lan3
ip lan2 vrrp shutdown trigger 25 lan3
ip lan2 vrrp shutdown trigger 26 lan3

ip lan3 address dhcp
ip lan3 nat descriptor 1
nat descriptor type 1 masquerade
nat descriptor address outer 1 primary

このように備えあれば憂いなしなWAN回線の冗長化が出来ちゃいます。実際に利用する場合はフィルター設定をお忘れなく！