[Bug 1186] New: ip6tables-restore not passing useful error messages from ip6tables

[bugzilla-daemon at netfilter.org]

https://bugzilla.netfilter.org/show_bug.cgi?id=1186

            Bug ID: 1186
           Summary: ip6tables-restore not passing useful error messages
                    from ip6tables
           Product: iptables
           Version: unspecified
          Hardware: x86_64
                OS: Ubuntu
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: unknown
          Assignee: netfilter-buglog at lists.netfilter.org
          Reporter: jasonhendry1987 at gmail.com

Hi,

I am using ip6tables-restore v1.6.0 (ubuntu 16.04 pkg from official repos).
When generating an IPv6 firewall with an option not supported by IPv6
ip6tables-restore gives this error: (line 76 is the last line in the file with
the COMMIT statement):

ip6tables-restore: line 76 failed

After debugging the rules manually I found the issue:

ip6tables -A DROP_BROADCAST_AND_MCAST --match state --state NEW --match
addrtype --dst-type BROADCAST --jump DROP 
ip6tables: Invalid argument. Run `dmesg' for more information.

Running dmesg gives me:

[636716.526815] xt_addrtype: ipv6 does not support BROADCAST matching

If ip6tables-restore could pass the error from ip6tables that would be useful. 
I have not tested if this happens with iptables-restore

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