I want to provide a backup for a LES100 link between 2 sites using
dynamic routing over adsl/ipsec.
The proposed solution involves purchasing a couple of expensive cisco layer 3 switches that are used to run eigrp over a the LES100 and a ipsec/gre tunnel between a nokia firewall and a cisco 837 adsl router.
Would using bgp for dynamic routing be a better solution as I've read that bgp can be run over ipsec without the need for a gre tunnel and so would provide better performance. (I've never configured bgp though).
i *assume* you have more than one connection to the internet at each site? else why would you consider bgp?
anyhow, i have done some thing similar with bgp for a small private wireless network, with redundant links, etc. next is on my list to run IPSec on the backbone links.
openbgp is straight forward to setup and i now have half a dozen routers linked with redundant links etc.
the thing to remember about openbgp is, to put only as much information in the config file as the router needs to know; the interfaces it has, the newtorks directly connected to it (or others statically routed) and the directly connected neighbours. more than that makes life and debugging complicated =) also getting bgpd on zebra or quagga is pretty straight forward also. openbgp <-> bgpd/quagga works well to ;)
(can discuss more off list)
regards,
kim
-- Kim Hawtin : IT Systems Administrator Ratbag : Level 8 - 63 Pirie Street Adelaide SA 5000 Australia Ph +61 882 235 830 : Fx +61 882 235 746 khawtin at ratbaggames dot com
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