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I have two sites that are going to be connected via VPN with FXO cards on each side going to PBX's. Do I need to setup a gatekeeper or just setup the routers as gateways?? Also what IOS would be needed (The main office is a 2620 and the remote offi...
That will work because the upstream router (your ISP) will still have /30 on their interface so when it sees a packet from a.b.c.3 it will treat is as a directed broadcast and not forward it on.
Forget multilink PPP. CEF is the best way to implement load balancing in my experience. It is much simpler to setup.Check outhttp://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/switch_c/xcprt2/xcdcefc.htm
GRE does not support MTU path discovery. You might want to check to see if you are blocking ICMP unreachable error messages "fragmentation needed" Type 3 Code 4Bryan
Here is a FREE Windows based program that lets you backup Cisco router and switch configs and can even alert you when changes have occured.http://www.kiwisyslog.com/products.htm#cattoolsBryan