can't initialize iptables table `nat'[solved]

[Adel Ahmed]

iptables v1.4.21: can't initialize iptables table `nat': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.

localhost linux # modprobe nf_nat_ipv4
localhost linux # lsmod | grep -i nf_nat
nf_nat_ipv4 2897 0
nf_nat 9938 1 nf_nat_ipv4
nf_conntrack 49468 3 nf_nat,nf_nat_ipv4,nf_conntrack_ipv4

localhost linux # iptables -tnat -L
iptables v1.4.21: can't initialize iptables table `nat': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.


this started happening when I upgraded from 3.16.5 to 3.17.7

thanks

[wannagios]

如果执行 iptable -L 出现以下信息，那么就需要重新配置和编译内核：
iptables v1.4.2: can't initialize iptables table `filter': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.

配置选项：
Networking —->
Networking options —->
[*] Network packet filtering (replaces ipchains) —>
Core Netfilter Configuration —>
<*> Netfilter Xtables support (required for ip_tables)
IP: Netfilter Configuration —>
<*> Connection tracking (required for masq/NAT)
<*> IP tables support (required for filtering/masq/NAT)
<*> IP range match support
<*> Packet filtering
<*> REJECT target support
<*> Full NAT

[lost+found]

You probably miss one of these:
/lib/modules/3.17.7-gentoo/kernel/net/netfilter/nf_nat.ko
/lib/modules/3.17.7-gentoo/kernel/net/netfilter/nf_nat_ftp.ko
/lib/modules/3.17.7-gentoo/kernel/net/netfilter/xt_nat.ko
/lib/modules/3.17.7-gentoo/kernel/net/ipv4/netfilter/nf_nat_ipv4.ko
/lib/modules/3.17.7-gentoo/kernel/net/ipv4/netfilter/iptable_nat.ko

There were some changes in menuconfig between these kernel versions, so you might check there.

Cheers

[toralf]

There were some pain with changed ip tables module names in the past.
If kernel menuconfig options were changed/moved in tis area you could just press "y" within

[acmondor]

I ran into this problem earlier this year when I upgraded to 3.17.7. The problem is due to a new/changed config symbol. Prior to 3.17.7 CONFIG_NF_NAT was all that was required to enable NAT support. Now you need to use CONFIG_IP_NF_NAT as shown below from the 'make menuconfig' search NF_NAT result:

[Adel Ahmed]

thanks everyone
enabling CONFIG_IP_NF_NAT solved everything