Re: AS numbers - Is there a global crisis?
> since there are other ways to achieve redundancy. Please advise what "other ways" there are to achieve redundancy for 'inbound' traffic via the Internet. Brian --- John Neiberger <[EMAIL PROTECTED]> wrote: > To get an ASN you have to show that you either have > a unique routing policy > or that you are multihomed to separate providers. > Sure, there are lots of > companies that have multiple internet connections, > but how many *really* > need to have redundant connections to separate ISPs? > Not really that many, > since there are other ways to achieve redundancy. > > Now, with that said, we applied for and received an > ASN a couple of months > ago and they have already issued over 300 since > then. At that rate, it > won't be too long before we run into trouble. > > John > > > I've been studying BGP, but something that keeps > bothering me when I > study > > it is that there are less than 65000 , (64511 to > be exact) public AS > > numbers. It would seem to me that these would > quickly run as out, as I > would > > think that there are that many corporations > world-wide that connected to > the > > internet via BGP. Any thoughts on this? > > > > > > Thanks, > > Joey Fowler > > > > We are told that talent creates its own > opportunities. But it sometimes > > seems that intense desire creates not only its > own opportunities, but its > > own talents. > > - Eric Hoffer (1902-1983 American Author & > Philosopher) > > > > > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > > > > > ___ > Send a cool gift with your E-Card > http://www.bluemountain.com/giftcenter/ > > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Routing Problem
Wow, one person replied, thanks Kenny. However, I cannot do BGP, as indicated in the e-mail. I realize that this is the optimum solution, but cannot do this. So my solution is as follows (yet to be tested): PAT everything out of the PIX to a PacBell public IP, except for the public servers, which will have a conduit mapping them to an IP in the government ISP range. The all 0's route in the PIX points to the PacBell router. Then put a route-map on the PacBell router so that all traffic with a source address of the government's IP range has a next hop of the Government router. It would then have a default route out to the Internet. Therefore all of the public servers would traverse and return via the T1 and all Internet surfing would traverse and returen via the DS-3. Hoping this works. Brian BTW, I had already checked out the link. It looks good, but every solution still requires BGP. Thanks anyway. --- "Kenny@Netzero" <[EMAIL PROTECTED]> wrote: > Ask PACBell for a /24 and coordinate with the govt > ISP to route it and do > BGP. There's also a very intersting article on > Cisco somewhere about using > NAT in this situation. Check this out: > http://www.cisco.com/warp/public/cc/pd/iosw/ioft/ionetn/tech/emios_wp.htm > I've never implemented it but would love to. Good > luck, > > Kenny > > > "Brian Wilcox" <[EMAIL PROTECTED]> wrote in > message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > I am currently adding another circuit to an > additional > > ISP for my network. I want to be able to use the > > first circuit for a redundant backup but am not > clear > > on how to accomplish this. > > > > The setup: > > (diagram located at > > > http://www.geocities.com/bwilcox_email/Routing_Design.html) > > - watch word wrap > > Internal LAN connected to two PIX's, one in > failover > > mode. The PIX's current default route points to > the > > old ISP (government). All of our internal > (public) > > addresses are from the Government ISP's address > space, > > which we have a /25 block. I'm currently NATing > my 10 > > net to this pool. I have an internal web server > that > > the users need access to from outside the network. > > I'm adding the new circuit via PacBell and would > like > > traffic to take that route and failover to the > > Government ISP. > > > > First solution: do BGP. Well, I can't. I only > have a > > /25, too specific, from the Government ISP and I > have > > to maintain the same address space. So my next > > thought would be to PAT everything out the PacBell > > circuit. That's fine and dandy but then the web > > server will reply to the source with a different > > address. I'd like to route the web server to the > > Government ISP. The only way I can think of doing > > that is via some sort of route map or policy map. > > > > Any comments would be greatly appreciated. > > > > Thanks, Brian > > > > __ > > Do You Yahoo!? > > Yahoo! Photos - Share your holiday photos online! > > http://photos.yahoo.com/ > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > > > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Routing Problem
I am currently adding another circuit to an additional ISP for my network. I want to be able to use the first circuit for a redundant backup but am not clear on how to accomplish this. The setup: (diagram located at http://www.geocities.com/bwilcox_email/Routing_Design.html) - watch word wrap Internal LAN connected to two PIX's, one in failover mode. The PIX's current default route points to the old ISP (government). All of our internal (public) addresses are from the Government ISP's address space, which we have a /25 block. I'm currently NATing my 10 net to this pool. I have an internal web server that the users need access to from outside the network. I'm adding the new circuit via PacBell and would like traffic to take that route and failover to the Government ISP. First solution: do BGP. Well, I can't. I only have a /25, too specific, from the Government ISP and I have to maintain the same address space. So my next thought would be to PAT everything out the PacBell circuit. That's fine and dandy but then the web server will reply to the source with a different address. I'd like to route the web server to the Government ISP. The only way I can think of doing that is via some sort of route map or policy map. Any comments would be greatly appreciated. Thanks, Brian __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
