sysctl: set net.ipv6.conf.all.accept_ra = 0.

1 files changed, 1 insertions, 0 deletions

diff --git a/roles/common/tasks/sysctl.yml b/roles/common/tasks/sysctl.yml
index d3ae86f..3056ee6 100644
--- a/roles/common/tasks/sysctl.yml
+++ b/roles/common/tasks/sysctl.yml
@@ -9,40 +9,41 @@
       # Address Verification in all interfaces to prevent some spoofing
       # attacks.
     - { name: 'net.ipv4.conf.default.rp_filter', value: 1 }
     - { name: 'net.ipv4.conf.all.rp_filter',     value: 1 }
 
       # Enable TCP/IP SYN cookies to avoid TCP SYN flood attacks. We
       # rate-limit not only the default ICMP types 3, 4, 11 and 12
       # (0x1818), but also types 0 and 8. See icmp(7).
     - { name: 'net.ipv4.tcp_syncookies',  value: 1 }
     - { name: 'net.ipv4.icmp_ratemask',   value: 6425 }
     - { name: 'net.ipv4.icmp_ratelimit',  value: 1000 }
 
       # Disable paquet forwarding between interfaces (we are not a router).
     - { name: 'net.ipv4.ip_forward',          value: 0 }
     - { name: 'net.ipv6.conf.all.forwarding', value: 0 }
 
       # Enable IPv6 Privacy Extensions.
     - { name: 'net.ipv6.conf.default.use_tempaddr', value: 2 }
     - { name: 'net.ipv6.conf.all.use_tempaddr',     value: 2 }
     - { name: 'net.ipv6.conf.all.autoconf',         value: 0 }
+    - { name: 'net.ipv6.conf.all.accept_ra',        value: 0 }
 
       # Do not accept ICMP redirects (prevent MITM attacks).
     - { name: 'net.ipv4.conf.all.accept_redirects', value: 0 }
     - { name: 'net.ipv6.conf.all.accept_redirects', value: 0 }
 
       # Do not send ICMP redirects (we are not a router).
     - { name: 'net.ipv4.conf.default.send_redirects', value:  0 }
     - { name: 'net.ipv4.conf.all.send_redirects',     value:  0 }
 
       # Do not accept IP source route packets (we are not a router).
     - { name: 'net.ipv4.conf.all.accept_source_route', value:  0 }
     - { name: 'net.ipv6.conf.all.accept_source_route', value:  0 }
 
       # Log Martian Packets.
     - { name: 'net.ipv4.conf.all.log_martians', value: 1 }
 
       # Ignore ICMP broadcasts.
     - { name: 'net.ipv4.icmp_echo_ignore_broadcasts', value: 1 }
 
       # Ignore bogus ICMP errors.