Is it possible to have 2 public IP addresses with 2 NICs and static route on CentOS 6.6?

comXyz

Hi guys,

I want to setup 2 public IP addresses (different subnet) with 2 NIC on CentOS 6.6.

For the first IP to connect to the internet, I need to set static route:

gateway dev eth0

default via gateway dev eth0

The second IP is from different subnet, but it uses the same gateway with first IP

What config I need to setup to have the second IP connect to the internet, so I can connect to the server using SSH via the second IP?

Thanks.

timnboys

@comXyz said:
Hi guys,

I want to setup 2 public IP addresses (different subnet) with 2 NIC on CentOS 6.6.

For the first IP to connect to the internet, I need to set static route:

gateway dev eth0

default via gateway dev eth0

The second IP is from different subnet, but it uses the same gateway with first IP

What config I need to setup to have the second IP connect to the internet, so I can connect to the server using SSH via the second IP?

Thanks.

Tried to do it the cheap way on delimiter?
Yea I tried that and failed and decided just to get a /29 instead.
but I do remember someone was successful in doing it try searching around for it it was probably one I commented in.

comXyz

@timnboys it's not Delimiter. I can't find the topic you mentioned, is it on LET also?

tommy

after setting both IP, run this command

sysctl net.ipv4.conf.all.rp_filter=2

comXyz

@tommy said:
after setting both IP, run this command

> sysctl net.ipv4.conf.all.rp_filter=2
> 

Thanks, it works.

qibinghua

@comXyz said:
Thanks, it works.

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