ルーティングの順序は重要ですか?
> route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
123.x.x.151 0.0.0.0 255.255.255.255 UH 0 0 0 vmbr0
123.x.x.154 0.0.0.0 255.255.255.255 UH 0 0 0 vmbr0
123.x.x.128 0.0.0.0 255.255.255.224 U 0 0 0 vmbr0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 vmbr1
0.0.0.0 123.x.x.129 0.0.0.0 UG 0 0 0 vmbr0
次と同じですか?
> route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
123.x.x.128 0.0.0.0 255.255.255.224 U 0 0 0 vmbr0
123.x.x.151 0.0.0.0 255.255.255.255 UH 0 0 0 vmbr0
123.x.x.154 0.0.0.0 255.255.255.255 UH 0 0 0 vmbr0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 vmbr1
0.0.0.0 123.x.x.129 0.0.0.0 UG 0 0 0 vmbr0
?
違いは
123.x.x.128 123.x.x.129 255.255.255.224 U 0 0 0 vmbr0
より高次です
123.x.x.151 0.0.0.0 255.255.255.255 UH 0 0 0 vmbr0
だから、私123.x.x.151
はそれがどこに行くかを送ると:
- the routed way over `123.x.x.129`, because it matches the `123.x.x.128` rule, or
- the direct way using the arp table, because it matches the `123.x.x.151` rule
?