Bug 229879

Summary: spew on startup of ip6tables
Product: [Fedora] Fedora Reporter: Dave Jones <davej>
Component: system-config-firewallAssignee: Thomas Woerner <twoerner>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: bnocera, musuruan, pb, pfrields
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2007-10-01 13:57:40 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Description Dave Jones 2007-02-23 22:52:26 UTC
with a fresh install of todays rawhide I see this when ip6tables starts up..

Warning: never matched p[  OK  ] 51. use exension match instead

Comment 1 Peter Bieringer 2007-06-18 19:08:33 UTC
Don't worry, be happy that ip6tables is at least starting ;-) 
See https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=244721 and
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=236888 for more

Comment 2 Peter Bieringer 2007-06-20 21:18:10 UTC
There are more issues

1) message is caused by:

# ip6tables -A RH-Firewall-1-INPUT -p 51 -j ACCEPT
Warning: never matched protocol: 51. use exension match instead.[root@host

Note that there is a linefeed also missing

2) Looks like there is a need of a discussion with netfilter folks, why they
mean, that in IPv6 an Authentication Header can never be occur as first
transport header behind the IPv6 header

3) If one try to setup a rule using IPv6 header matching (according to the
netfilter warning message), this would fail because of missing library:

# ip6tables -A RH-Firewall-1-INPUT --match ipv6header --header 51 -j ACCEPT
ip6tables v1.3.7: Couldn't load match
`ipv6header':/lib/iptables/libip6t_ipv6header.so: cannot open shared object
file: No such file or directory

Try `ip6tables -h' or 'ip6tables --help' for more information.

Note that the kernel would support this:
# modprobe ip6t_ipv6header
# cat /proc/net/ip6_tables_matches 

This missing userspace support is already known for




I really wonder why this bug can't be fixed since August 2005.

Comment 3 Thomas Woerner 2007-08-23 12:21:14 UTC
*** Bug 230019 has been marked as a duplicate of this bug. ***

Comment 4 Thomas Woerner 2007-09-26 15:43:26 UTC
Assigning to system-config-firewall.

Comment 5 Thomas Woerner 2007-10-01 13:57:40 UTC
Fixed in rawhide in package system-config-firewall-1.0.8-1 or newer.