I am running Kamikaze 7.09 on La Fonerra device and i am seeing these messages

root@OpenWrt:/$ printk: 6 messages suppressed.
nf_conntrack: table full, dropping packet.
nf_conntrack: table full, dropping packet.
nf_conntrack: table full, dropping packet.
nf_conntrack: table full, dropping packet.
nf_conntrack: table full, dropping packet.
nf_conntrack: table full, dropping packet.
nf_conntrack: table full, dropping packet.
nf_conntrack: table full, dropping packet.
nf_conntrack: table full, dropping packet.
nf_conntrack: table full, dropping packet.
printk: 1 messages suppressed.
nf_conntrack: table full, dropping packet.
printk: 10 messages suppressed.

1. Waht are these messages

2. Is this indication of any problem with the device

With Regards,
Reddy

Your nat table is saturated - your net devices behind your La Fonera try to use more connections than it can handle with default settings.
You can increase table size by adding line in /etc/sysctl.conf:

net.ipv4.netfilter.ip_conntrack_max=<size>  ex. 16384

I suggest you to decrease timeouts of not closed but already not used connections.
If you're not into it replace your /etc/sysctl.conf with:

kernel.panic=3
net.ipv4.netfilter.ip_conntrack_max=16384
net.ipv4.conf.default.arp_ignore=1
net.ipv4.conf.all.arp_ignore=1
net.ipv4.ip_forward=1
net.ipv4.icmp_echo_ignore_broadcasts=1
net.ipv4.icmp_ignore_bogus_error_responses=1
net.ipv4.tcp_ecn=1
net.ipv4.tcp_fin_timeout=30
net.ipv4.tcp_keepalive_time=120
net.ipv4.tcp_syncookies=1
net.ipv4.tcp_timestamps=0
net.ipv4.netfilter.ip_conntrack_tcp_timeout_established=300
net.ipv4.netfilter.ip_conntrack_udp_timeout=60
net.ipv4.netfilter.ip_conntrack_udp_timeout_stream=180
# net.ipv6.conf.all.forwarding=1

(Last edited by Marek on 4 Nov 2008, 22:04)

this option should be disabled on busy systems especially on embedded devices that have limited resources.

(Last edited by acoul on 4 Nov 2008, 21:04)

acoul,

thsi option net.ipv4.netfilter.ip_conntrack_max=<size> ?

I always use it on my WRT54GS and ASUS WL-500gP with success. Both of theme got 32M RAM so I'm not 100% sure of it will work right with Fonera (16MB??).