In the final section in this chapter, we are going to learn about securing the messages that are exchanged between BGP peers. As we already known, BGP uses TCP as the underlying protocol. Attacks on BGP are typically implemented by attacking the underlying TCP protocol.
To mitigate against these attacks, BGP supports Message Digest 5 (MD5) authentication which is used to secure or verify the security of the TCP segments between two BGP peers. When the BGP TCP MD5 shared password is configured between two peers, the Cisco IOS software checks the MD5 digest of every segment sent on the . . .
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