[FS#1111] I have fresh install on WR740N and I discovered ip6tables setup is empty

[LEDE Bugs]

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FS#1111 - I have fresh install on WR740N and I discovered ip6tables setup is empty
User who did this - Mathias Kresin (mkresin)

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Please provide the informations you already were told to provide on IRC:


13:51:33 < jow> please pastebin /etc/config/firewall and the output of
                "ip6tables-save" too, while you're at it
14:03:02 < jow> you could open a bug report, but that would need the output of
                "ip6tables-save" and /etc/config/firewall too


For reference the relevant "ip6tables --list -nv" output of a freshly booted LEDE Reboot SNAPSHOT r5122-f7a6fd3153:


Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination
    0     0 ACCEPT     all      lo     *       ::/0                 ::/0                 /* !fw3 */
    0     0 input_rule  all      *      *       ::/0                 ::/0                 /* !fw3: user chain for input */
    0     0 ACCEPT     all      *      *       ::/0                 ::/0                 ctstate RELATED,ESTABLISHED /* !fw3 */
    0     0 syn_flood  tcp      *      *       ::/0                 ::/0                 tcp flags:0x17/0x02 /* !fw3 */
    0     0 zone_lan_input  all      br-lan *       ::/0                 ::/0                 /* !fw3 */
    0     0 zone_wan_input  all      dsl0.7 *       ::/0                 ::/0                 /* !fw3 */

Chain reject (3 references)
 pkts bytes target     prot opt in     out     source               destination
    0     0 REJECT     tcp      *      *       ::/0                 ::/0                 /* !fw3 */ reject-with tcp-reset
    0     0 REJECT     all      *      *       ::/0                 ::/0                 /* !fw3 */ reject-with icmp6-port-unreachable

Chain input_wan_rule (1 references)
 pkts bytes target     prot opt in     out     source               destination

Chain zone_wan_input (1 references)
 pkts bytes target     prot opt in     out     source               destination
    0     0 input_wan_rule  all      *      *       ::/0                 ::/0                 /* !fw3: user chain for input */
    0     0 ACCEPT     udp      *      *       fc00::/6             fc00::/6             udp dpt:546 /* !fw3: Allow-DHCPv6 */
    0     0 ACCEPT     icmpv6    *      *       fe80::/10            ::/0                 ipv6-icmptype 130 code 0 /* !fw3: Allow-MLD */
    0     0 ACCEPT     icmpv6    *      *       fe80::/10            ::/0                 ipv6-icmptype 131 code 0 /* !fw3: Allow-MLD */
    0     0 ACCEPT     icmpv6    *      *       fe80::/10            ::/0                 ipv6-icmptype 132 code 0 /* !fw3: Allow-MLD */
    0     0 ACCEPT     icmpv6    *      *       fe80::/10            ::/0                 ipv6-icmptype 143 code 0 /* !fw3: Allow-MLD */
    0     0 ACCEPT     icmpv6    *      *       ::/0                 ::/0                 ipv6-icmptype 128 limit: avg 1000/sec burst 5 /* !fw3: Allow-ICMPv6-Input */
    0     0 ACCEPT     icmpv6    *      *       ::/0                 ::/0                 ipv6-icmptype 129 limit: avg 1000/sec burst 5 /* !fw3: Allow-ICMPv6-Input */
    0     0 ACCEPT     icmpv6    *      *       ::/0                 ::/0                 ipv6-icmptype 1 limit: avg 1000/sec burst 5 /* !fw3: Allow-ICMPv6-Input */
    0     0 ACCEPT     icmpv6    *      *       ::/0                 ::/0                 ipv6-icmptype 2 limit: avg 1000/sec burst 5 /* !fw3: Allow-ICMPv6-Input */
    0     0 ACCEPT     icmpv6    *      *       ::/0                 ::/0                 ipv6-icmptype 3 limit: avg 1000/sec burst 5 /* !fw3: Allow-ICMPv6-Input */
    0     0 ACCEPT     icmpv6    *      *       ::/0                 ::/0                 ipv6-icmptype 4 code 0 limit: avg 1000/sec burst 5 /* !fw3: Allow-ICMPv6-Input */
    0     0 ACCEPT     icmpv6    *      *       ::/0                 ::/0                 ipv6-icmptype 4 code 1 limit: avg 1000/sec burst 5 /* !fw3: Allow-ICMPv6-Input */
    0     0 ACCEPT     icmpv6    *      *       ::/0                 ::/0                 ipv6-icmptype 133 limit: avg 1000/sec burst 5 /* !fw3: Allow-ICMPv6-Input */
    0     0 ACCEPT     icmpv6    *      *       ::/0                 ::/0                 ipv6-icmptype 135 limit: avg 1000/sec burst 5 /* !fw3: Allow-ICMPv6-Input */
    0     0 ACCEPT     icmpv6    *      *       ::/0                 ::/0                 ipv6-icmptype 134 limit: avg 1000/sec burst 5 /* !fw3: Allow-ICMPv6-Input */
    0     0 ACCEPT     icmpv6    *      *       ::/0                 ::/0                 ipv6-icmptype 136 limit: avg 1000/sec burst 5 /* !fw3: Allow-ICMPv6-Input */
    0     0 zone_wan_src_REJECT  all      *      *       ::/0                 ::/0                 /* !fw3 */

Chain zone_wan_src_REJECT (1 references)
 pkts bytes target     prot opt in     out     source               destination
    0     0 reject     all      dsl0.7 *       ::/0                 ::/0                 /* !fw3 */


Looks pretty much as expected. Only IPv6 ICMP packages are accepted via wan.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1111#comment3689