We are planning to block ICMP Timestamp Request (Type 13) and ICMP Timestamp Reply (Type 14) with a firewall on the network managed by Spectrum 21.2.4 as a security measure.
Plan to add the following settings:ipchains -A input -p icmp --icmp-type timestamp-request -j DROPipchains -A output -p icmp --icmp-type timestamp-reply -j DROP
Does Spectrum uses ICMP Type13 and Type14.
Release : 21.2
Spectrum doesn't use Type 13 and 14.
ICMP used by Spectrum is ICMP Echo Request (Type 8) and ICMP Echo Reply (Type 0).
Spectrum does not use ICMP Timestamp Request (Type 13) and ICMP Timestamp Reply (Type 14).