- allow multiple ports, protocols, macs, icmp types per rule
- implement "limit" and "limit_burst" options for rules
- implement "extra" option to rules and redirects for passing arbritary flags to iptables
- implement negations for "src_port", "dest_port", "src_dport", "src_mac", "proto" and "icmp_type" options
- allow wildcard (*) "src" and "dest" options in rules to allow specifying "any" source or destination
- validate symbolic icmp-type names against the selected iptables binary
- properly handle forwarded ICMPv6 traffic in the default configuration
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27317 3c298f89-4303-0410-b956-a3cf2f4a3e73
Two examples of potentially useful configurations (commented out, of course):
(a) map the ssh service running on the firewall to 22001 externally, without modifying the configuration of the daemon itself. this allows port 22 on the WAN side to then be port-forwarded to a
LAN-based machine if desired, or if not, simply obscures the port from external attack.
(b) allow IPsec/ESP and ISAKMP (UDP-based key exchange) to happen by default. useful for most modern VPN clients you might have on your WAN.
Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26805 3c298f89-4303-0410-b956-a3cf2f4a3e73
- implement a REJECT policy and enable it by default, reject packets with approriate response (closes: #3970)
- cleanup syn_flood and remove logging
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12688 3c298f89-4303-0410-b956-a3cf2f4a3e73
- make uci firewall default and remove old code
- fix up dependencies
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12284 3c298f89-4303-0410-b956-a3cf2f4a3e73
