7. Appendix

7.1 References

• [PUIS] - Practical UNIX and Internet Security, Simson Garfinkel and Gene Spafford, O'Reilly, 2003
• [CARP] - "CARP License" and "Redundancy must be free"
• [LUCAS] - Cisco supports CARP? Ha ha ha hahaha?
• [PFFAQ] - PF: The OpenBSD Packet Filter
• [RFC3768] - RFC 3768, Virtual Router Redundancy Protocol (VRRP)
• [RFC2281] - RFC 2281, Cisco Hot Standby Router Protocol (HSRP)
• [CARPFAQ] - PF: Firewall Redundancy with CARP and pfsync

7.2 Bibliography

• [ABSO] - Absolute OpenBSD, Michael W. Lucas, No Starch Press, 2003
• The Common Address redundancy Protocol (CARP)
• Firewall Failover with pfsync and CARP
• Firewalling with OpenBSD's PF packet filter, Peter N. M. Hansteen, 2008
• The Book of PF, 2nd Edition, Peter N. M. Hansteen, No Starch Press, 2010
• The OpenBSD PF Packet Filter Book, Jeremy C. Reed, Reed Media Services, 2006