[j-nsp] Multihome SRX650 2 default routes

[Daniel M Daloia Jr]

Thanks Ben. This would be the case with two separate virtual routers since they would have to be in different security zones which why I didn't think that would work. I would like to keep the firewall in flow mode.


I found some information on multipath which I am going to lab up soon. I can keep the interfaces in the same security zone if that is the case and create a peer group for the two neighbours.


http://www.juniper.net/techpubs/en_US/junos10.4/topics/reference/configuration-statement/multipath-edit-protocols-bgp.html

Thanks!




________________________________
From: Ben Boyd <ben at sinatranetwork.com>
To: Daniel M Daloia Jr <daniel.daloia at yahoo.com>
Cc: "juniper-nsp at puck.nether.net" <juniper-nsp at puck.nether.net>
Sent: Friday, August 26, 2011 10:44 AM
Subject: Re: [j-nsp] Multihome SRX650 2 default routes


If you install both routes in the forwarding table you'll probably end up dropping a lot of your traffic.  

The SRX is a stateful firewall, so if you sent traffic to one provider and got it back on another it would drop the traffic. 

It would be best to do this in a router or to load balance per prefix with as path prepending going out and local pref coming in.  

Anyway, here's how you would do it, but be careful.  
root# show
policy-statement TestLBOut {
    then {
        load-balance per-packet;
    }
}
 
lroot# show routing-options
forwarding-table {
    export TestLBOut;
}



Thanks,
Ben Boyd
----------------------
Sent from my iPhone

On Aug 25, 2011, at 11:09, Daniel M Daloia Jr <daniel.daloia at yahoo.com> wrote:


Hi Folks,
>
>Is it possible to install 2 BGP default routes from 2 ISPs to provide load balancing with an SRX650 cluster? Both ISPs are same speed. I was thinking this may be possible with importing the routes into inet.0 from separate virtual routers which have the interfaces facing the 2 ISPs in them, but the ISP interfaces would have to be in separate security zones which wouldn't agree with the security policy and NAT. Anyone have any ideas or can point me to some documentation that will help? I suppose I can buy a separate set of routers to run BGP and use an IGP to load balance, but doing it with the single cluster would be nice.
>
>Thanks!
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