After performing the kernel upgrade from the stock 6.1 kernel to the 2.2.16-3 rpms i get "IP_MASQ:reverse ICMP: failed checksum from ##.##.##.##!" messages every minute or so on my console. Using vhi-rhine driver for eth0 Ip masquerading is off. /proc/sys/net/ipv4/ip_masq_debug is 0
Later kernels fixed this printk. Someone forgot to close the bug