topic ASA 5505, EIGRP split horizon in Network Security https://community.cisco.com/t5/network-security/asa-5505-eigrp-split-horizon/m-p/2408432#M309753 <HTML><HEAD></HEAD><BODY><P>Confirmed. 9.1(3) does the same thing. The split-horizon command shows in the startup config, but will not be loaded into the running config upon reload. I made sure to load 9.1(3), manually add the command onto the SVI, write the config and then reload. Upon rebooting into 9.1(3) again, the command is ignored.</P></BODY></HTML> Wed, 06 Nov 2013 22:17:40 GMT Keith Wood 2013-11-06T22:17:40Z ASA 5505, EIGRP split horizon https://community.cisco.com/t5/network-security/asa-5505-eigrp-split-horizon/m-p/2408430#M309747 <P>I have a small environment that I wanted some redundancy in. It consists of two layer 3 switches that are connected with each other and they both connect to an ASA 5505, forming a triangle in logical architecture. EIGRP is running between all of them. Neighbor relationships form between each of the L3 switches and with the ASA, but when the cable between the two L3 switches is disconnected, routing between them does not pass through the ASA. I've bypassed this by issuing 'no split-horizon eigrp &lt;AS&gt;' on the SVI on the ASA that communicates with the L3 switches and the routing passes just fine. Everything works as intended... until the ASA reboots. For whatever reason that command is wiped from the SVI every time the ASA is rebooted. Even after a reboot, the startup config shows the command on the SVI, but it never gets loaded into the running config. Is this a bug? Or an intended feature? I'm running 9.1(1).</P> Tue, 12 Mar 2019 02:59:24 GMT https://community.cisco.com/t5/network-security/asa-5505-eigrp-split-horizon/m-p/2408430#M309747 Keith Wood 2019-03-12T02:59:24Z ASA 5505, EIGRP split horizon https://community.cisco.com/t5/network-security/asa-5505-eigrp-split-horizon/m-p/2408431#M309749 <HTML><HEAD></HEAD><BODY><P>This does sound like a bug, though I have not been able to find any documentation on it.&nbsp; Have you tried upgrading to the 9.1(3) version? could this be an option?</P></BODY></HTML> Wed, 06 Nov 2013 19:29:20 GMT https://community.cisco.com/t5/network-security/asa-5505-eigrp-split-horizon/m-p/2408431#M309749 Marius Gunnerud 2013-11-06T19:29:20Z ASA 5505, EIGRP split horizon https://community.cisco.com/t5/network-security/asa-5505-eigrp-split-horizon/m-p/2408432#M309753 <HTML><HEAD></HEAD><BODY><P>Confirmed. 9.1(3) does the same thing. The split-horizon command shows in the startup config, but will not be loaded into the running config upon reload. I made sure to load 9.1(3), manually add the command onto the SVI, write the config and then reload. Upon rebooting into 9.1(3) again, the command is ignored.</P></BODY></HTML> Wed, 06 Nov 2013 22:17:40 GMT https://community.cisco.com/t5/network-security/asa-5505-eigrp-split-horizon/m-p/2408432#M309753 Keith Wood 2013-11-06T22:17:40Z ASA 5505, EIGRP split horizon https://community.cisco.com/t5/network-security/asa-5505-eigrp-split-horizon/m-p/2408433#M309755 <HTML><HEAD></HEAD><BODY><P>is the ASA booting from the startup config or has the startup config file been changed?</P><P></P><P><STRONG>show bootvar</STRONG></P></BODY></HTML> Fri, 08 Nov 2013 08:02:07 GMT https://community.cisco.com/t5/network-security/asa-5505-eigrp-split-horizon/m-p/2408433#M309755 Marius Gunnerud 2013-11-08T08:02:07Z ASA 5505, EIGRP split horizon https://community.cisco.com/t5/network-security/asa-5505-eigrp-split-horizon/m-p/2408434#M309757 <HTML><HEAD></HEAD><BODY><P>BOOT variable = disk0:/asa913-k8.bin</P><P>Current BOOT variable = disk0:/asa913-k8.bin</P><P>CONFIG_FILE variable =</P><P>Current CONFIG_FILE variable =</P></BODY></HTML> Sat, 09 Nov 2013 16:22:09 GMT https://community.cisco.com/t5/network-security/asa-5505-eigrp-split-horizon/m-p/2408434#M309757 Keith Wood 2013-11-09T16:22:09Z ASA 5505, EIGRP split horizon https://community.cisco.com/t5/network-security/asa-5505-eigrp-split-horizon/m-p/2408435#M309759 <HTML><HEAD></HEAD><BODY><P>could you check the configuration register, if it is not set to 0x1 then you need to change it to this value.</P><P></P><P>show version | in register</P><P></P><P>config-register 0x1</P></BODY></HTML> Sat, 09 Nov 2013 19:08:00 GMT https://community.cisco.com/t5/network-security/asa-5505-eigrp-split-horizon/m-p/2408435#M309759 Marius Gunnerud 2013-11-09T19:08:00Z