I'm running OSPF via Zebra on Secureplatform in a test/proof of concept environment. The problem I'm experiencing pertains to Multipath OSPF. For redundancy purposes, several IP networks in my environment have multiple routes. Zebra shows this multiple routes normally, however they are not passed to the kernel and not visible via the 'ip route' command on the SPLAT box. I've found several references to this issue in Zebra documentation and discussion groups (see links). Basically, they stipulate that Zebra and the Linux kernel must be compiled with Multipath support. Given that Zebra is displaying the multipath routes correctly, it appears it has the requisite support. However, my thinking now is that the kernel is not compiled with this option.
Here's an example scenario -- The preferred route is available via the kernel routing table, but the second route is not shown. Both routes are shown in zebra through the 'sh ip ospf database' command. If the primary route is made unavailable it disappears from the routing tables in both Zebra and the kernel routing table. In Zebra, the secondary route is then shown via 'show ip route' but the kernel will not show any route for this network, and the network becomes unreachable. Is anyone aware of a reference documenting what options are compiled into the Linux kernel? Has anyone had success in getting multipath routes learned via Zebra's OSPF to pass to the SPLAT kernel routing table? Obviously, recompiling the SPLAT kernel is not an option, but I'd like to be certain one way or the other whether the kernel lacks support for multipath before scrapping SPLAT in favor of a full fledged Linux deployment or some other solution. http://pilot.org.ua/zebra/kodgehopper-ecmp.html http://pilot.org.ua/zebra/zebra.html Thanks for your help. Jeff Jarmoc - CCSA, CCNA, MCSE Sr. Network Analyst - Grubb & Ellis [EMAIL PROTECTED] ================================================= To set vacation, Out-Of-Office, or away messages, send an email to [EMAIL PROTECTED] in the BODY of the email add: set fw-1-mailinglist nomail ================================================= To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ================================================= If you have any questions on how to change your subscription options, email [EMAIL PROTECTED] =================================================
