diff --git a/usr/lib/sysctl.d/990-security-misc.conf b/usr/lib/sysctl.d/990-security-misc.conf
index 718d64b..547dbeb 100644
--- a/usr/lib/sysctl.d/990-security-misc.conf
+++ b/usr/lib/sysctl.d/990-security-misc.conf
@@ -14,6 +14,14 @@ kernel.core_pattern=|/bin/false
 ## Restricts the kernel log to root only.
 kernel.dmesg_restrict=1
 
+## Does not set coredump name to 'core' which is default. Defense in depth.
+kernel.core_uses_pid=1
+
+## A martian packet is a one with a source address which is blatantly wrong
+## Recommended to keep a log of these to identify these suspicious packets
+net.ipv4.conf.all.log_martians=1
+net.ipv4.conf.default.log_martians=1
+
 ## Don't allow writes to files that we don't own
 ## in world writable sticky directories, unless
 ## they are owned by the owner of the directory.