- The fact that eBGP has an AD of 20 can be a problem.
- You may have a very short path via EIGRP (or OSPF or RIP or whatever other IGP), but the longer eBGP path will be preferred.
- For God’s sake, do not lower the AD of EIGRP! Havoc will ensue.
- Using backdoor routes causes eBGP routes to have an AD of 200.
- Allows the shorter-path IGP routes to be added to the routing table.
router bgp 123 network 1.1.1.0 backdoor
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Comment with corrections, please
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