Bug 210546 - setup updates /etc/protocols and creates troubles for iptables
setup updates /etc/protocols and creates troubles for iptables
Product: Fedora
Classification: Fedora
Component: setup (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Phil Knirsch
David Lawrence
Depends On:
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Reported: 2006-10-12 15:56 EDT by Michal Jaegermann
Modified: 2015-03-04 20:17 EST (History)
1 user (show)

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Doc Type: Bug Fix
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Last Closed: 2007-05-23 09:56:10 EDT
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Description Michal Jaegermann 2006-10-12 15:56:26 EDT
Description of problem:

Before an update, and still in /etc/protocols provided by setup-2.5.49-1
used in FC5, we had such lines:

ipv6-crypt      50      IPv6-Crypt      # Encryption Header for IPv6
ipv6-auth       51      IPv6-Auth       # Authentication Header for IPv6

After that update protocols 50 and 51 changed like that:

esp     50      ESP             # Encap Security Payload
ah      51      AH              # Authentication Header

The trouble is that in the past something (and it was not me) wrote
in /etc/sysconfig/iptables:

-A RH-Firewall-1-INPUT -p ipv6-crypt -j ACCEPT
-A RH-Firewall-1-INPUT -p ipv6-auth -j ACCEPT

and now '/etc/init.d/iptables start' fails with "unknown protocol".
This results is no firewall at all.

Editing /etc/sysconfig/iptables to replace 'ipv6-crypt' by 'esp'
and 'ipv6-auth' by 'ah' makes iptables to work again.  'setup' package
could do such edits in %post script thus preventing the failure.

If this substitution does not make sense then incriminated lines
should be removed by %post from /etc/sysconfig/iptables entirely.

Version-Release number of selected component (if applicable):
Comment 1 Phil Knirsch 2007-05-23 09:56:10 EDT
I'll add those back again after the new "official" protocol names to provide
backward compatibility. Package should be building real soon in Fedora Devel.

Read ya, Phil

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