Re: Dual ISP & Dual ASA scenario

Hi,

Yes, this is the same way I am planning to do for inbound and outbound load
sharing on Routers.

What about inbound and outbound traffic for ASA?

Cheers,
Nick

On Wed, Sep 14, 2011 at 9:06 AM, Raghava <raghava.rao85_at_gmail.com> wrote:

> It can work in this way..
>
> Site A -- has one major prefix..
> Site B --- has one major prefix
>
> Like/24..which you wanna give to both ISP frm site A and Site B..
>
> What you can do is when you are giving these 2 prefixes from site A, you
> can prepend..prefix of site B and give it to IsP..
> In same way..you can give site A prepended prefix from site B, this will
> make incoming traffic to particular site from ISP end..Use network command
> to advertise it..this is for future use whenever some thing goes
> down..inside your core..and the prefixes..of particular site is lost..and
> for outgoing traffic you can setup some..ways below your switch...from
where
> the traffic is getting sourced from...
>
> Correct me if any views on this
>
> HTH
> Regards,
> Raghava Rao
>
> -Sent from my Vodafone BlackBerry.
>
> It matters not how strait the gate,
> How charged with punishments the scroll.
> I am the master of my fate:
> I am the captain of my soul.
>
> -- Taken from "Invictus" by William Ernest Henley
>
> -----Original Message-----
> From: Nick E <ccienovice_at_gmail.com>
> Sender: nobody_at_groupstudy.com
> Date: Wed, 14 Sep 2011 08:49:36
> To: Jay McMickle<jay.mcmickle_at_yahoo.com>
> Reply-To: Nick E <ccienovice_at_gmail.com>
> Cc: ccielab_at_groupstudy.com<ccielab_at_groupstudy.com>
> Subject: Re: Dual ISP & Dual ASA scenario
>
> Hi Jay,
>
> I will be accepting only default from ISP. To load share the traffic from
> ISP's i'll be announcing split the prefix in two and announce to both the
> ISP's with AS prepend.
>
> Cheers,
> Nick
>
> On Wed, Sep 14, 2011 at 8:09 AM, Jay McMickle <jay.mcmickle_at_yahoo.com
> >wrote:
>
> > I meant to also mention the use of max-path 2 (so it will load share) and
> > per-packet so it will do it equally.
> >
> > Regards,
> > Jay McMickle- CCNP,CCSP,CCDP
> > Sent from my iPhone
> > http://mycciepursuit.wordpress.com
> >
> >
> > On Sep 13, 2011, at 3:44 PM, Jay McMickle <jay.mcmickle_at_yahoo.com>
> wrote:
> >
> > > Are you planning on using HSRP on the ISP routers? How are you
> planning
> > to use prepend for the routes- inbound? You mentioned static routes to
> the
> > ASA's, but what are you taking from the ISP? What will you use to load
> > balance the traffic to the ISP? You also need to make sure your ISP
> routers
> > are set to not be a transit for BGP.
> > >
> > > Regards,
> > > Jay McMickle- CCNP,CCSP,CCDP
> > > Sent from my iPhone
> > > http://mycciepursuit.wordpress.com
> > >
> > >
> > > On Sep 13, 2011, at 3:00 PM, NiKhil <ccienovice_at_gmail.com> wrote:
> > >
> > >> Hi All,
> > >>
> > >> Scenario:-
> > >> 2 ISP on 2 different routers.
> > >> 2 ASA (each ASA is connected to each routers directly)
> > >>
> > >> ISP1 ISP2
> > >> | |
> > >> Rtr A RtrB
> > >> | |
> > >> ASA 1 ASA 2
> > >> \ /
> > >> \ /
> > >> \ /
> > >> SWITCH 1
> > >>
> > >> Requirement:-
> > >> Load Balancing/Load Sharing between both the ISP's.
> > >> Active/Standby between both the ASA
> > >>
> > >> Solution:-
> > >> AS path prepending to be used for load sharing by running BGP.
> > >> Configuring 2 default routes one for ISP1 and another as back up for
> > ISP2 on
> > >> ASA.
> > >> PBR configuration on RtrA to forward the traffic on RtrB.
> > >> Stateful Failover on ASA
> > >>
> > >> Kindly do let me know if this is good solution. Also, if there are any
> > >> challenges to implement this solution. If anyone has another better
> > solution
> > >> please suggest.
> > >>
> > >> Cheers,
> > >> Nick
> > >>
> > >>
> > >> Blogs and organic groups at http://www.ccie.net
> > >>
> > >>
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Received on Wed Sep 14 2011 - 09:15:06 ART