sysctl: T671: import VyOS specific settings from vyatta-cfg-system

1 files changed, 97 insertions, 0 deletions

diff --git a/src/etc/sysctl.d/30-vyos-router.conf b/src/etc/sysctl.d/30-vyos-router.conf
new file mode 100644
index 000000000..1946dc31a
--- /dev/null
+++ b/src/etc/sysctl.d/30-vyos-router.conf
@@ -0,0 +1,97 @@
+#
+# VyOS specific sysctl settings, see sysctl.conf (5) for information.
+#
+
+# Panic on OOPS
+kernel.panic_on_oops=1
+
+# Timeout before rebooting on panic
+kernel.panic=60
+
+# Send all core files to /var/core/core.program.pid.time
+kernel.core_pattern=/var/core/core-%e-%p-%t
+
+# ARP configuration
+#  arp_filter - allow multiple network interfaces on same subnet
+#  arp_announce - avoid local addresses no on target's subnet
+#  arp_ignore - reply only if target IP is local_address on the interface
+
+#  arp_filter defaults to 1 so set all to 0 so vrrp interfaces can override it.
+net.ipv4.conf.all.arp_filter=0
+
+# https://phabricator.vyos.net/T300
+net.ipv4.conf.all.arp_ignore=0
+
+net.ipv4.conf.all.arp_announce=2
+
+# Enable packet forwarding for IPv4
+net.ipv4.ip_forward=1
+
+# if a primary address is removed from an interface promote the
+# secondary address if available
+net.ipv4.conf.all.promote_secondaries=1
+
+# Ignore ICMP broadcasts sent to broadcast/multicast
+net.ipv4.icmp_echo_ignore_broadcasts=1
+
+# Ignore bogus ICMP errors
+net.ipv4.icmp_ignore_bogus_error_responses=1
+
+# Send ICMP responses with primary address of exiting interface
+net.ipv4.icmp_errors_use_inbound_ifaddr=1
+
+# Log packets with impossible addresses to kernel log
+net.ipv4.conf.all.log_martians=1
+
+# Do not ignore all ICMP ECHO requests by default
+net.ipv4.icmp_echo_ignore_all=0
+
+# Disable source validation by default
+net.ipv4.conf.all.rp_filter=0
+net.ipv4.conf.default.rp_filter=0
+
+# Enable tcp syn-cookies by default
+net.ipv4.tcp_syncookies=1
+
+# Disable accept_redirects by default for any interface
+net.ipv4.conf.all.accept_redirects=0
+net.ipv4.conf.default.accept_redirects=0
+net.ipv6.conf.all.accept_redirects=0
+net.ipv6.conf.default.accept_redirects=0
+
+# Disable accept_source_route by default
+net.ipv4.conf.all.accept_source_route=0
+net.ipv4.conf.default.accept_source_route=0
+net.ipv6.conf.all.accept_source_route=0
+net.ipv6.conf.default.accept_source_route=0
+
+# Enable send_redirects by default
+net.ipv4.conf.all.send_redirects=1
+
+# Increase size of buffer for netlink
+net.core.rmem_max=2097152
+
+# Enable packet forwarding for IPv6
+net.ipv6.conf.all.forwarding=1
+
+# Increase route table limit
+net.ipv6.route.max_size = 262144
+
+# Do not forget IPv6 addresses when a link goes down
+net.ipv6.conf.default.keep_addr_on_down=1
+net.ipv6.conf.all.keep_addr_on_down=1
+
+# Default value of 20 seems to interfere with larger OSPF and VRRP setups
+net.ipv4.igmp_max_memberships = 512
+
+# Enable conntrack helper by default
+net.netfilter.nf_conntrack_helper=1
+
+# Increase default garbage collection thresholds
+net.ipv4.neigh.default.gc_thresh1 = 1024
+net.ipv4.neigh.default.gc_thresh2 = 4096
+net.ipv4.neigh.default.gc_thresh3 = 8192
+#
+net.ipv6.neigh.default.gc_thresh1 = 1024
+net.ipv6.neigh.default.gc_thresh2 = 4096
+net.ipv6.neigh.default.gc_thresh3 = 8192