Ip NAT outside vs. IP route.
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Posted by AM on August 2, 2005, 2:30 pm
Please log in for more thread options Just one question to who has already faced this problem. Imagine you have a router A with 2 interface on the Internet plus the LAN interface. Imagine behind that router there is a firewall where to terminate VPNs. Imagine you want use those 2 connections to Internet (provided by different ISPs) and you want to use one of them as main path to the remote VPN endpoint and the other as backup. Imagine on the remote endpoint to have a range of IP addresses to be used. AS usually on router A you have a default route pointing to next hop of the main link to Internet. Moreover on the remote point you do NAT (using a.a.a.a address) towards the IP provided by 2nd ISP on router A's side. The question is: which method is the best between specifying an "ip route" statement towards a.a.a.a address and using "ip nat outside" statement? Hope is all clear. Alex. | |||||||||||||
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Posted by Robert on August 4, 2005, 6:22 am
Please log in for more thread options If you have two Internet circuits provided by different ISPs, you are going to need to run BGP on your router to influence your path into your autonomous system. HTH Robert | |||||||||||||
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Posted by AM on August 4, 2005, 5:04 pm
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Robert wrote: But I have not an autonomous system... :( Maybe my question was too complicaetd. Alex. | |||||||||||||
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Posted by Robert on August 5, 2005, 6:30 am
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Your ISP should be able to help you get an autonomous system number from ARIN, or assign you a private AS number. | |||||||||||||
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> going to need to run BGP on your router to influence your path into
> your autonomous system. HTH