G'day one and all,
I am currently designing a Linux based ISP network that will span across
a wireless link, as well as having a satellite down-link, along with a
gateway to the world for uplink traffic and bi-directional local
(australian) traffic.
The remote site will be hosting a disaster recovery mirror server of all
our accounts data, along with a linux box running portslave from behind
a firewall (FWd).
The RF link will be wavelans running on LRP boxes acting as routers
(firewalling??) and not bridges, so all our backbone traffic does not
flood the link. This link will have a backup of a dialup link if for
some reason the RF link falls over.
Below is the mudmap that explains it all very simplistically (if it
formatted OK).
What is the best way to tackle the routing both internal and external
(to the world). All our servers will probably have live IP addresses,
except for anything on the intranet side of things which will be behind
a masquarading FW. We will also have customer networks dialing up on
either modem pool, these along with some single users will have static
IP addresses. Also on the remote link behind FWd will be a common
Ethernet segment that will host a couple of customer networks that share
the building.
What internal routing Protocols would be best used, Is RIP any good for
this ? I have heard it is inefficient and can generate alot of traffic
just through table updates. Is this true? Or would plain old static
routes surfice ?
What about the External link. We will have a down link via the
satellite ex-US, but I still want any australian traffic to utilise our
main link so it doesn't have to travel to the US and then back down the
satellite.
Is there any FAQ's that would explain this routing further.
(world)
|
+++++++
+ FWa +
+++++++
++++++++++++ |
+ ascend +---------------( satellite (IN)
+ 120 lines+ |
++++++++++++ |
+++++++++++ +++++++
+ offsite + + FWb +
(customers) + backup + +++++++
| +++++++++++ |
| +++++++ | ++++++++ 2Mb ++++++++ |
|-----+ FWd +---------------+ wave +========+ wave +------- (server
pool)
| +++++++ ++++++++ ++++++++ | (radius,
mail etc)
| +----------------+ |
++++++++++ Phone backup +++++++
+PortSLV + + FWc +
+30 lines+ +++++++
+ ++++++++++ |
(intranet)
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