當我ssh進入cell_z1。那麼我可以看到這些路由表。cell_z1中iptables NAT配置的perpose是什麼?
$ sudo iptables -t nat -L
Chain PREROUTING (policy ACCEPT)
target prot opt source destination
w--prerouting all -- anywhere anywhere
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
w--prerouting all -- anywhere anywhere
Chain POSTROUTING (policy ACCEPT)
target prot opt source destination
w--postrouting all -- anywhere anywhere
Chain w--instance-coiaggg2s3f (1 references)
target prot opt source destination
DNAT tcp -- anywhere cell-z1-0.node.dc1.cf.internal tcp dpt:60036 /* ac4154dd-a2bd-41d8-46bb-c5dfa3c8bfb2 */ to:10.254.0.6:8080
DNAT tcp -- anywhere cell-z1-0.node.dc1.cf.internal tcp dpt:60037 /* ac4154dd-a2bd-41d8-46bb-c5dfa3c8bfb2 */ to:10.254.0.6:2222
Chain w--instance-coiaggg2s3l (1 references)
target prot opt source destination
DNAT tcp -- anywhere cell-z1-0.node.dc1.cf.internal tcp dpt:60040 /* 74ab1082-7eca-4a09-7364-b266a23a7fdf */ to:10.254.0.2:8080
DNAT tcp -- anywhere cell-z1-0.node.dc1.cf.internal tcp dpt:60041 /* 74ab1082-7eca-4a09-7364-b266a23a7fdf */ to:10.254.0.2:2222
Chain w--postrouting (1 references)
target prot opt source destination
MASQUERADE all -- 10.254.0.0/30 !10.254.0.0/30 /* executor-healthcheck-8946f5d6-063c-4bae-474d-0032f72b8fcb */
MASQUERADE all -- 10.254.0.4/30 !10.254.0.4/30 /* ef658bba-214d-4eef-5228-410e8e8aeb69 */
MASQUERADE all -- 10.254.0.8/30 !10.254.0.8/30 /* 3cb958eb-409a-4aa9-48f1-41bb6573ebc6 */
MASQUERADE all -- 10.254.0.12/30 !10.254.0.12/30 /* 9600ee8c-9e63-4682-bed3-b14767ea46d3 */
MASQUERADE all -- 10.254.0.16/30 !10.254.0.16/30 /* executor-healthcheck-eda5cee2-81be-4890-6d67-2a9f108d6dda */
Chain w--prerouting (2 references)
target prot opt source destination
w--instance-coiaggg2s3f all -- anywhere anywhere /* ac4154dd-a2bd-41d8-46bb-c5dfa3c8bfb2 */
w--instance-coiaggg2s3l all -- anywhere anywhere /* 74ab1082-7eca-4a09-7364-b266a23a7fdf */
問題是:這些目的地的位置是什麼? 當我在cell_z1中捲曲時,它返回301錯誤。所以,我認爲它已被刪除。
- 10.254.0.6:8080
- 10.254.0.6:2222
- 10.254.0.2:8080
- 10.254.0.2:2222
但是,它會導致路由器返回502錯誤某些推送應用程序時,路由器發射器將該應用程序端口映射到60036,60037,60040,60041
我的環境: 主機操作系統:Ubuntu服務器16.10 VirtualBox的:5.0.32
$ bosh -e bosh-lite releases
Using environment '192.168.50.4' as client 'admin'
Name Version Commit Hash
cf 254+dev.1* 80a8305a+
cf-mysql 34.2.0+dev.1* b8dcbe32
cf-rabbitmq 222.15.0+dev.1* 377afa0a+
cf-rabbitmq-test 0.1.7 98720fb8
cflinuxfs2-rootfs 1.60.0* 0b44b228+
diego 1.11.0+dev.1* 4ee830c6
garden-runc 1.4.0* 60f9e9dd
routing 0.147.0 255f268f
~ 0.136.0 d29132da+
已更新2017年4月11日
我發現這個信息來自川崎(監護人的網絡庫)。 我看到下面的路由表。但不同於10.254.0.6,路由表中沒有爲10.254.0.2(10.254.0.0/30)
$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 10.244.16.1 0.0.0.0 UG 0 0 0 wcl8gbnff7q4-1
10.244.16.0 * 255.255.255.0 U 0 0 0 wcl8gbnff7q4-1
10.254.0.4 * 255.255.255.252 U 0 0 0 wbrdg-0afe0004