Problems with iptables 'filter' and config.gz ??

[Guest redhawkuk]

I have 2 Android phones, one has Cyangenmod Gingerbread the other the rooted Three UK Stock 2.1 ROM.

I've been trying to install DroidWall on my Android 2.1 phone but every time I try to enable it I get an error message:

iptables v1.4.10: can't initialize iptables table `filter': Table does not exist (do you need to insmod?)

Perhaps iptables or your kernel needs to be upgraded.

I've compared my 2 phones both have the same module loaded ar6000 (atheros wifi firmware??) so that can't be the reason for iptables failing.

After some searching on several Linux forums I found references to /boot/config.gz but the only config file I could in my phone was /proc/config.gz

By using "zcat /proc/config.gz | grep NETFILTER" on both phones there appears to be many differences:

Android 2.1

# CONFIG_NETFILTER is not set

Android 2.3

CONFIG_NETFILTER=y

# CONFIG_NETFILTER_DEBUG is not set

CONFIG_NETFILTER_ADVANCED=y

CONFIG_NETFILTER_NETLINK=y

CONFIG_NETFILTER_NETLINK_QUEUE=y

CONFIG_NETFILTER_NETLINK_LOG=y

# CONFIG_NETFILTER_TPROXY is not set

CONFIG_NETFILTER_XTABLES=y

CONFIG_NETFILTER_XT_TARGET_CLASSIFY=y

CONFIG_NETFILTER_XT_TARGET_CONNMARK=y

# CONFIG_NETFILTER_XT_TARGET_DSCP is not set

# CONFIG_NETFILTER_XT_TARGET_HL is not set

CONFIG_NETFILTER_XT_TARGET_MARK=y

CONFIG_NETFILTER_XT_TARGET_NFLOG=y

CONFIG_NETFILTER_XT_TARGET_NFQUEUE=y

# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set

CONFIG_NETFILTER_XT_TARGET_TCPMSS=y

# CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP is not set

# CONFIG_NETFILTER_XT_MATCH_CLUSTER is not set

CONFIG_NETFILTER_XT_MATCH_COMMENT=y

# CONFIG_NETFILTER_XT_MATCH_CONNBYTES is not set

CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=y

CONFIG_NETFILTER_XT_MATCH_CONNMARK=y

CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y

# CONFIG_NETFILTER_XT_MATCH_DCCP is not set

# CONFIG_NETFILTER_XT_MATCH_DSCP is not set

# CONFIG_NETFILTER_XT_MATCH_ESP is not set

CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=y

CONFIG_NETFILTER_XT_MATCH_HELPER=y

CONFIG_NETFILTER_XT_MATCH_HL=y

CONFIG_NETFILTER_XT_MATCH_IPRANGE=y

CONFIG_NETFILTER_XT_MATCH_LENGTH=y

CONFIG_NETFILTER_XT_MATCH_LIMIT=y

CONFIG_NETFILTER_XT_MATCH_MAC=y

CONFIG_NETFILTER_XT_MATCH_MARK=y

CONFIG_NETFILTER_XT_MATCH_MULTIPORT=y

CONFIG_NETFILTER_XT_MATCH_OWNER=y

CONFIG_NETFILTER_XT_MATCH_POLICY=y

CONFIG_NETFILTER_XT_MATCH_PKTTYPE=y

CONFIG_NETFILTER_XT_MATCH_QUOTA=y

# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set

# CONFIG_NETFILTER_XT_MATCH_REALM is not set

# CONFIG_NETFILTER_XT_MATCH_RECENT is not set

# CONFIG_NETFILTER_XT_MATCH_SCTP is not set

CONFIG_NETFILTER_XT_MATCH_STATE=y

CONFIG_NETFILTER_XT_MATCH_STATISTIC=y

CONFIG_NETFILTER_XT_MATCH_STRING=y

# CONFIG_NETFILTER_XT_MATCH_TCPMSS is not set

CONFIG_NETFILTER_XT_MATCH_TIME=y

CONFIG_NETFILTER_XT_MATCH_U32=y

# CONFIG_NETFILTER_XT_MATCH_OSF is not set

Is this the reason why iptables isn't working properly on Android 2.1??

From what I understand /proc isn't a proper folder stuff gets populated and copied over when the phone boots so how does one tweak the contents of config.gz??

Richard S.