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RE: [FW1] Load Balancing to the internet using 2 ISPs - routing p protocol?




I disagree on the amount of address space you will need.  

Technically, you can do BGP routing to any AS as long as your ISPs buy in.
For example, I have one /24 from a large provider and no assigned IP address
block from another (terminated at the same point but no addresses assigned)
and am running BGP between them.  

It may be EASIER to get ISPs to do BGP for you if you are a "large" customer
(able to justify /19 blocks) but it is certainly technically (and in my
experience easy as well) to do BGP routing if you have the gear to support
it and ISP agreement.

Chris

-----Original Message-----
From: Eugene Nesterenko [mailto:[email protected]]
Sent: Friday, May 11, 2001 8:26 PM
To: 'Jonas Thambert'; 'Hartmann, Josef';
[email protected]
Subject: RE: [FW1] Load Balancing to the internet using 2 ISPs - routing
p protocol?



To use BGP for load balancing between 2 ISP's you need to have your own AS +
/19 address block.
If you have less then /19 - it'll be a pain...

Regards, 

     Eugene 

Eugene Nesterenko, CCIE #5283, CCNP+Security, CCDP, CCSE, MCSE 
Principal Consultant 
Gobosh, Inc. 

------->www.gobosh.cc 
        [email protected] 
        direct:fax:-----Original Message-----
From: Jonas Thambert [mailto:[email protected]]
Sent: Friday, May 11, 2001 1:43 AM
To: 'Hartmann, Josef'; [email protected]
Subject: RE: [FW1] Load Balancing to the internet using 2 ISPs - routing p
rotocol?



BGP


-----Original Message-----
From: Hartmann, Josef [mailto:[email protected]]
Sent: den 9 maj 2001 17:12
To: [email protected]
Subject: [FW1] Load Balancing to the internet using 2 ISPs - routing
protocol?



Hi,

I would like to setup a Internet connection using 2 links to the internet -
(maybe ISPs) with (maybe) 2x2MBit/s.


|------------------|
|------------------|
|   ISP1        |                                          |    ISP2       |
|                  |                                          |
|
|------------------|
|------------------|
          |   2MBit/s                                             | 2MBit/s
          |                                                           |
|------------------|
|------------------|
|   Router1    |                                          |    Router2  |
|                  |                                          |
|
|------------------|
|------------------|
        |                                                              |
        |                 which routing protocol?            |
        ---------------------------------------------------------------
                                    |
                             ----------------
                                  FW-1

My question now is, which routing protocol should/ could I use between
Router1 and Router2 to the firewall so that load balancing could be done.
HSRP actually only supports one box with traffic, OSPF (?). However I
shouldn't use a routing protocol before the firewall itself, shouldn't I?

Which impacts does the selected routing protocol have to FW-1?

Regards,
Josef



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