With reference to archive entry: RE: Fail over to 2 ISDN Provider. [7:9899] posted 06/26/2001
I am trying to configure a VPN edge router (801/12.0.7T as it happens). The router has been assigned a static, public IP address for the dialer interface. It is running an encrypted tunnel to another public IP address, as well as NAT between the internet and the internal ethernet interface. I need to optimise the dialing, such that different numbers are dialed at different times of the day. The example quoted above will not work, as the policy routing only applies to the e0 interface, and not to the packets generated by the tunnel. My thoughts are as follows:- 1) Use loopback0 as the fixed IP address. Use 2 dialer interfaces with ip unnumbered loopback0 and dialer-groups using access lists with time-range. How does the routing process cope with this? 2) Use loopback0 as the fixed IP address. Use policy routing on loopback0 to 2 dialer interfaces. Can policy routing be applied to loopback interfaces ?? 3) Use 2 dialer interfaces, each with ip address negotiated, but with different dialer-group and dialer string statements. Then use 2 equal cost static routes. I suspect that this will result in 50% packet loss, as both interfaces spoof as being up. Does Cisco do anything clever here? 4) Use 2 dialer interfaces etc. as before. Use 2 static routes with high metric(AD) as floating statics. Run another routing protocol. Redistribute static routes into the routing protocol, using a distribute-list with an access-list containing time-range statements to perform the filtering. I will try these in my lab this evening. Any thoughts or comments? Chris Read Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=30681&t=30681 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
