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reion
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VRF configuration

Mon Mar 28, 2016 1:46 pm

Hi to all! Can anybody explain, or give an example of vrf configuration. I have 2 routers different locations, interconnected between with an OVPN tunnel. Each router has it's own gateway. On R1 I have 2 LAN's one private, and second public IP's. so I need that second (public) LAN be reachable and goes to internet only via R2 (ovpn), BUT, first lan, with private IP's goes through R1's default gateway!
Thanks!
 
lz1dsb
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Re: VRF configuration

Sat Apr 23, 2016 10:01 pm

And why do you need VRF?
Who advertises the public network? If it's not you and it's the ISP doing it on your behalf, your options are limited. I'm a bit puzzled what you're trying to achieve. Could you prepare a small drawing and elaborate a little bit...
 
samsung172
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Re: VRF configuration

Sun Apr 24, 2016 12:53 am

Do you want this network routed, or as a layer2?

You can just add the routes - regardless of default gw.

vrf is "quite" simple - but you need to do a lot of configurations. And i would not recomand use this, unless you have to. I use it some - using rfc1918 addresses for managment and config- but running MPLS with ospf in main routing table - and running bgp with confederation for vrf on top of this.

Edit . you might want to use a firewallrule to set another gw for your lan.
 
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Re: VRF configuration

Sun Apr 24, 2016 7:26 am

VRF is very common in ISP and Data Center networks. Some common uses are:

1) Separate public IPs from private management
2) Allow overlap of private IPs for customer networks
3) Create security zones with firewalls in between for routing between VRFs
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reion
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Re: VRF configuration

Wed Apr 27, 2016 11:05 am

Thanks to all for ideas, I solved this marking new route, and adding default gateway for route mark!

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