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TCP Vulnerable, But Net Won't Go Down: Page 4 of 4

Other tactics that enterprises could employ until patches were available and deployed, said Oliver Friedrichs, the senior manager of Symantec's security response team, include implementing their routers' MD5 Signature Option, another level of authentication that should stymie attackers.

"MD5 adds a hash to each request for BGP," said Friedrichs, "so the attacker would have to try to calculate the hash as well. That should make it much more difficult to inject a packet into the TCP session at the router."