| 1 | [[PageOutline]] |
| 2 | |
| 3 | = VMによるネットワークテスト = |
| 4 | == network map == |
| 5 | {{{ |
| 6 | WAN |
| 7 | | |
| 8 | | |
| 9 | Windows (NAT) |
| 10 | 192.168.40.1 |
| 11 | | |
| 12 | | |
| 13 | ((( 192.168.40.0/24 ))) |
| 14 | | | |
| 15 | | | |
| 16 | 192.168.40.10 192.168.40.20 |
| 17 | | * |
| 18 | <eth0> <eth0> |
| 19 | [[ubuntu-outer]] <<centos-outer>> |
| 20 | <eth1> <eth1> |
| 21 | * | |
| 22 | 10.0.0.10 10.0.0.20 |
| 23 | | | |
| 24 | | | |
| 25 | (10.0.0.0/16) |
| 26 | | |
| 27 | | |
| 28 | 10.0.0.254 |
| 29 | *(10.0.0.20) |
| 30 | <eth0> |
| 31 | <<ubuntu-router>> |
| 32 | <eth1> <eth2> |
| 33 | | | |
| 34 | 10.1.0.254 10.2.0.254 |
| 35 | | | |
| 36 | | | |
| 37 | ((((( 10.1.0.0/16 ))))) ((((( 10.2.0.0/16 ))))) |
| 38 | | | | | | | | | |
| 39 | | | | | | | | | |
| 40 | 10.1.0.10 10.1.0.20 | 10.1.0.30 10.2.0.30 | | | |
| 41 | * | | | * / | | |
| 42 | <eth0> <eth1> | <eth0> <eth1> / | | |
| 43 | [[ubuntu-inner-AA]] | [[ubuntu-inner-AB]] / | | |
| 44 | | / | | |
| 45 | | / | | |
| 46 | 10.1.0.110 10.2.0.110 10.2.0.10 10.2.0.20 |
| 47 | | | * | |
| 48 | <eth1> <eth2> <eth0> <eth1> |
| 49 | [[centos-inner]] [[ubuntu-inner-BB]] |
| 50 | <eth0> |
| 51 | * |
| 52 | 192.168.50.110 |
| 53 | | |
| 54 | | |
| 55 | 192.168.50.1 |
| 56 | Windows (NAT) |
| 57 | | |
| 58 | | |
| 59 | WAN |
| 60 | }}} |
| 61 | * ((())) |
| 62 | * LANセグメント |
| 63 | * [[]] |
| 64 | * 通常ノード |
| 65 | * <<>> |
| 66 | * net.ipv4.ip_forward=1 になっているノード |
| 67 | * * が付いているNIC |
| 68 | * デフォルトゲートウェイ |
| 69 | |
| 70 | == 設定 == |
| 71 | === centos-outer === |
| 72 | * centos-outer ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 |
| 73 | {{{ |
| 74 | DEVICE=eth0 |
| 75 | BOOTPROTO=static |
| 76 | IPADDR=192.168.40.20 |
| 77 | NETMASK=255.255.255.0 |
| 78 | NETWORK=192.168.40.0 |
| 79 | GATEWAY=192.168.40.1 |
| 80 | ONBOOT=yes |
| 81 | }}} |
| 82 | * centos-outer ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth1 |
| 83 | {{{ |
| 84 | DEVICE=eth1 |
| 85 | BOOTPROTO=static |
| 86 | IPADDR=10.0.0.20 |
| 87 | NETMASK=255.255.0.0 |
| 88 | NETWORK=10.0.0.0 |
| 89 | ONBOOT=yes |
| 90 | }}} |
| 91 | * centos-outer ~]# route |
| 92 | {{{ |
| 93 | Kernel IP routing table |
| 94 | Destination Gateway Genmask Flags Metric Ref Use Iface |
| 95 | 192.168.40.0 * 255.255.255.0 U 0 0 0 eth0 |
| 96 | 10.0.0.0 * 255.255.0.0 U 0 0 0 eth1 |
| 97 | 169.254.0.0 * 255.255.0.0 U 0 0 0 eth1 |
| 98 | default 192.168.40.1 0.0.0.0 UG 0 0 0 eth0 |
| 99 | }}} |
| 100 | * centos-outer ~]# ip route |
| 101 | {{{ |
| 102 | 192.168.40.0/24 dev eth0 proto kernel scope link src 192.168.40.20 |
| 103 | 10.0.0.0/16 dev eth1 proto kernel scope link src 10.0.0.20 |
| 104 | 169.254.0.0/16 dev eth1 scope link |
| 105 | default via 192.168.40.1 dev eth0 |
| 106 | }}} |
| 107 | |
| 108 | === ubuntu-outer === |
| 109 | * ubuntu-outer:~$ cat /etc/network/interfaces |
| 110 | {{{ |
| 111 | auto lo |
| 112 | iface lo inet loopback |
| 113 | |
| 114 | auto eth0 |
| 115 | iface eth0 inet static |
| 116 | address 192.168.40.10 |
| 117 | netmask 255.255.255.0 |
| 118 | network 192.168.40.0 |
| 119 | |
| 120 | auto eth1 |
| 121 | iface eth1 inet static |
| 122 | address 10.0.0.10 |
| 123 | netmask 255.255.0.0 |
| 124 | network 10.0.0.0 |
| 125 | gateway 10.0.0.254 |
| 126 | }}} |
| 127 | * ubuntu-outer:~$ route |
| 128 | {{{ |
| 129 | Kernel IP routing table |
| 130 | Destination Gateway Genmask Flags Metric Ref Use Iface |
| 131 | 192.168.40.0 * 255.255.255.0 U 0 0 0 eth0 |
| 132 | 10.0.0.0 * 255.255.0.0 U 0 0 0 eth1 |
| 133 | default 10.0.0.254 0.0.0.0 UG 100 0 0 eth1 |
| 134 | }}} |
| 135 | * ubuntu-outer:~$ ip route |
| 136 | {{{ |
| 137 | 192.168.40.0/24 dev eth0 proto kernel scope link src 192.168.40.10 |
| 138 | 10.0.0.0/16 dev eth1 proto kernel scope link src 10.0.0.10 |
| 139 | default via 10.0.0.254 dev eth1 metric 100 |
| 140 | }}} |
| 141 | |
| 142 | === ubuntu-router === |
| 143 | * ubuntu-router:~$ cat /etc/network/interfaces |
| 144 | {{{ |
| 145 | auto lo |
| 146 | iface lo inet loopback |
| 147 | |
| 148 | auto eth0 |
| 149 | iface eth0 inet static |
| 150 | address 10.0.0.254 |
| 151 | netmask 255.255.0.0 |
| 152 | network 10.0.0.0 |
| 153 | gateway 10.0.0.20 |
| 154 | |
| 155 | auto eth1 |
| 156 | iface eth1 inet static |
| 157 | address 10.1.0.254 |
| 158 | netmask 255.255.0.0 |
| 159 | network 10.1.0.0 |
| 160 | |
| 161 | auto eth2 |
| 162 | iface eth2 inet static |
| 163 | address 10.2.0.254 |
| 164 | netmask 255.255.0.0 |
| 165 | network 10.2.0.0 |
| 166 | }}} |
| 167 | * ubuntu-router:~$ route |
| 168 | {{{ |
| 169 | Kernel IP routing table |
| 170 | Destination Gateway Genmask Flags Metric Ref Use Iface |
| 171 | 10.2.0.0 * 255.255.0.0 U 0 0 0 eth2 |
| 172 | 10.0.0.0 * 255.255.0.0 U 0 0 0 eth0 |
| 173 | 10.1.0.0 * 255.255.0.0 U 0 0 0 eth1 |
| 174 | default 10.0.0.20 0.0.0.0 UG 100 0 0 eth0 |
| 175 | }}} |
| 176 | * ubuntu-router:~$ ip route |
| 177 | {{{ |
| 178 | 10.2.0.0/16 dev eth2 proto kernel scope link src 10.2.0.254 |
| 179 | 10.0.0.0/16 dev eth0 proto kernel scope link src 10.0.0.254 |
| 180 | 10.1.0.0/16 dev eth1 proto kernel scope link src 10.1.0.254 |
| 181 | default via 10.0.0.20 dev eth0 metric 100 |
| 182 | }}} |
| 183 | |
| 184 | === ubuntu-inner-AA === |
| 185 | * ubuntu-inner-AA:~$ cat /etc/network/interfaces |
| 186 | {{{ |
| 187 | auto lo |
| 188 | iface lo inet loopback |
| 189 | |
| 190 | auto eth0 |
| 191 | iface eth0 inet static |
| 192 | address 10.1.0.10 |
| 193 | netmask 255.255.0.0 |
| 194 | network 10.1.0.0 |
| 195 | gateway 10.1.0.254 |
| 196 | |
| 197 | auto eth1 |
| 198 | iface eth1 inet static |
| 199 | address 10.1.0.20 |
| 200 | netmask 255.255.0.0 |
| 201 | network 10.1.0.0 |
| 202 | }}} |
| 203 | * ubuntu-inner-AA:~$ route |
| 204 | {{{ |
| 205 | Kernel IP routing table |
| 206 | Destination Gateway Genmask Flags Metric Ref Use Iface |
| 207 | 10.1.0.0 * 255.255.0.0 U 0 0 0 eth0 |
| 208 | 10.1.0.0 * 255.255.0.0 U 0 0 0 eth1 |
| 209 | default 10.1.0.254 0.0.0.0 UG 100 0 0 eth0 |
| 210 | }}} |
| 211 | * ubuntu-inner-AA:~$ ip route |
| 212 | {{{ |
| 213 | 10.1.0.0/16 dev eth0 proto kernel scope link src 10.1.0.10 |
| 214 | 10.1.0.0/16 dev eth1 proto kernel scope link src 10.1.0.20 |
| 215 | default via 10.1.0.254 dev eth0 metric 100 |
| 216 | }}} |
| 217 | |
| 218 | === ubuntu-inner-AB === |
| 219 | * ubuntu-inner-AB:~$ cat /etc/network/interfaces |
| 220 | {{{auto lo |
| 221 | iface lo inet loopback |
| 222 | |
| 223 | auto eth0 |
| 224 | iface eth0 inet static |
| 225 | address 10.1.0.30 |
| 226 | netmask 255.255.0.0 |
| 227 | network 10.1.0.0 |
| 228 | |
| 229 | auto eth1 |
| 230 | iface eth1 inet static |
| 231 | address 10.2.0.30 |
| 232 | netmask 255.255.0.0 |
| 233 | network 10.2.0.0 |
| 234 | gateway 10.2.0.254 |
| 235 | }}} |
| 236 | * ubuntu-inner-AB:~$ route |
| 237 | {{{ |
| 238 | Kernel IP routing table |
| 239 | Destination Gateway Genmask Flags Metric Ref Use Iface |
| 240 | 10.2.0.0 * 255.255.0.0 U 0 0 0 eth1 |
| 241 | 10.1.0.0 * 255.255.0.0 U 0 0 0 eth0 |
| 242 | default 10.2.0.254 0.0.0.0 UG 100 0 0 eth1 |
| 243 | }}} |
| 244 | * ubuntu-inner-AB:~$ ip route |
| 245 | {{{ |
| 246 | 10.2.0.0/16 dev eth1 proto kernel scope link src 10.2.0.30 |
| 247 | 10.1.0.0/16 dev eth0 proto kernel scope link src 10.1.0.30 |
| 248 | default via 10.2.0.254 dev eth1 metric 100 |
| 249 | }}} |
| 250 | |
| 251 | === ubuntu-inner-BB === |
| 252 | * ubuntu-inner-BB:~$ cat /etc/network/interfaces |
| 253 | {{{ |
| 254 | auto lo |
| 255 | iface lo inet loopback |
| 256 | |
| 257 | auto eth0 |
| 258 | iface eth0 inet static |
| 259 | address 10.2.0.10 |
| 260 | netmask 255.255.0.0 |
| 261 | network 10.2.0.0 |
| 262 | gateway 10.2.0.254 |
| 263 | |
| 264 | auto eth1 |
| 265 | iface eth1 inet static |
| 266 | address 10.2.0.20 |
| 267 | netmask 255.255.0.0 |
| 268 | network 10.2.0.0 |
| 269 | }}} |
| 270 | * ubuntu-inner-BB:~$ route |
| 271 | {{{ |
| 272 | Kernel IP routing table |
| 273 | Destination Gateway Genmask Flags Metric Ref Use Iface |
| 274 | 10.2.0.0 * 255.255.0.0 U 0 0 0 eth0 |
| 275 | 10.2.0.0 * 255.255.0.0 U 0 0 0 eth1 |
| 276 | default 10.2.0.254 0.0.0.0 UG 100 0 0 eth0 |
| 277 | }}} |
| 278 | * ubuntu-inner-BB:~$ ip route |
| 279 | {{{ |
| 280 | 10.2.0.0/16 dev eth0 proto kernel scope link src 10.2.0.10 |
| 281 | 10.2.0.0/16 dev eth1 proto kernel scope link src 10.2.0.20 |
| 282 | default via 10.2.0.254 dev eth0 metric 100 |
| 283 | }}} |
| 284 | |
| 285 | === centos-inner === |
| 286 | * centos-inner ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 |
| 287 | {{{ |
| 288 | DEVICE=eth0 |
| 289 | BOOTPROTO=static |
| 290 | IPADDR=192.168.50.110 |
| 291 | NETMASK=255.255.255.0 |
| 292 | NETWORK=192.168.50.0 |
| 293 | GATEWAY=192.168.50.1 |
| 294 | ONBOOT=yes |
| 295 | }}} |
| 296 | * centos-inner ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth1 |
| 297 | {{{ |
| 298 | DEVICE=eth1 |
| 299 | BOOTPROTO=static |
| 300 | IPADDR=10.1.0.110 |
| 301 | NETMASK=255.255.0.0 |
| 302 | NETWORK=10.1.0.0 |
| 303 | ONBOOT=yes |
| 304 | }}} |
| 305 | * centos-inner ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth2 |
| 306 | {{{ |
| 307 | DEVICE=eth2 |
| 308 | BOOTPROTO=static |
| 309 | IPADDR=10.2.0.110 |
| 310 | NETMASK=255.255.0.0 |
| 311 | NETWORK=10.2.0.0 |
| 312 | ONBOOT=yes |
| 313 | }}} |
| 314 | * centos-inner ~]# route |
| 315 | {{{ |
| 316 | Kernel IP routing table |
| 317 | Destination Gateway Genmask Flags Metric Ref Use Iface |
| 318 | 192.168.50.0 * 255.255.255.0 U 0 0 0 eth0 |
| 319 | 10.2.0.0 * 255.255.0.0 U 0 0 0 eth2 |
| 320 | 10.1.0.0 * 255.255.0.0 U 0 0 0 eth1 |
| 321 | 169.254.0.0 * 255.255.0.0 U 0 0 0 eth2 |
| 322 | default 192.168.50.1 0.0.0.0 UG 0 0 0 eth0 |
| 323 | }}} |
| 324 | * centos-inner ~]# ip route |
| 325 | {{{ |
| 326 | 192.168.50.0/24 dev eth0 proto kernel scope link src 192.168.50.110 |
| 327 | 10.2.0.0/16 dev eth2 proto kernel scope link src 10.2.0.110 |
| 328 | 10.1.0.0/16 dev eth1 proto kernel scope link src 10.1.0.110 |
| 329 | 169.254.0.0/16 dev eth2 scope link |
| 330 | default via 192.168.50.1 dev eth0 |
| 331 | }}} |