Linux server bind multiple network adapters IP

Requirements: Binding two public IP on Taiwan Linux, to achieve extended IP for dedicated service

Question: Adding a binding one Elastic IP on a network card, network adapter binding primary public network ip be a normal visit, but the expansion card can not access the public network ip.

The reason: not set routing rules, leading the newly added IP extension card can not access

 

1: Adding a route table alias test

[root@test ~]# vim /etc/iproute2/rt_tables

#

# reserved values

#

255     local

254     main

253     default

0       unspec

32000  test

#

# local

#

# 1 inr.ruhep

 

## Add 32000 test, then save and exit!

 

2: Add a routing table in test

[root@test ~]# ip route add default via 172.16.0.1 dev eth1 table test

 

## 172.16.0.1 (expansion card gateway ip), test (add test table)

 

 

3: Add Policy Routing

[root@test ~]# ip rule add from 172.16.0.13 lookup test prio 32000

 

## 172.16.0.13 (expansion card private network IP)

 

4: Can I access via Telnet + IP test

[c:\~]$ telnet 139.159.236.94 22

 

 

Connecting to 139.159.236.91:22...

Connection established.

To escape to local shell, press 'Ctrl+Alt+]'.

SSH-2.0-OpenSSH_7.4

Connection closing...Socket close