Today I updated several servers running CentOS 4.3, and got the new 2.6.9-42 kernel. One of the machines serves as our firewall. After rebooting I lost all forwarding thru the machine. I reverted back to the 2.6.9-34 kernel and connectivity returned. During the few minutes that the new kernel was running I checked that the routing table looked OK, and with tcpdump I saw that indeed no traffic was going thru from the externel interface to any of the internal interfaces.
Has anyone seen similar behavior??
Micha Silver napsal(a):
Today I updated several servers running CentOS 4.3, and got the new 2.6.9-42 kernel. One of the machines serves as our firewall. After rebooting I lost all forwarding thru the machine. I reverted back to the 2.6.9-34 kernel and connectivity returned. During the few minutes that the new kernel was running I checked that the routing table looked OK, and with tcpdump I saw that indeed no traffic was going thru from the externel interface to any of the internal interfaces.
Has anyone seen similar behavior??
Had no time to update all routers I have, but two were updated. Both work smoothly (except shaping, which is resolved by update iproute package). David
On Fri, September 1, 2006 4:04 pm, Micha Silver wrote:
Today I updated several servers running CentOS 4.3, and got the new 2.6.9-42 kernel. One of the machines serves as our firewall. After rebooting I lost all forwarding thru the machine. I reverted back to the 2.6.9-34 kernel and connectivity returned. During the few minutes that the new kernel was running I checked that the routing table looked OK, and with tcpdump I saw that indeed no traffic was going thru from the externel interface to any of the internal interfaces.
Has anyone seen similar behavior??
The two firewalls I upgraded to 2.6.9-42 have been working just fine.
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David Hrbáč -
Marko A. Jennings -
Micha Silver