@techreport{richardson-ipsec-icmp-filter-00, number = {draft-richardson-ipsec-icmp-filter-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-richardson-ipsec-icmp-filter/00/}, author = {Michael Richardson}, title = {{Why traceroute can not work through IPsec gateways}}, pagetotal = 4, year = 1997, month = jul, day = 16, abstract = {This document describes the problem of doing diagnostics through IPsec gateways (VPNs). If the gateways implement their policies to the letter, then diagnostics are not possible.}, }