'Icmp error' presentation slideshows

Securing Routers Against Hackers and Denial of Service Attacks

Securing Routers Against Hackers and Denial of Service Attacks. Lou Ronnau lpr@cisco.com. Outline. IP Refresher Attack Types Network Layer Attacks Transport Layer Attacks Application Layer Attacks. Outline (cont.). Reconnaissance Initial Access Questions. IP Refresher.

1.16k views • 102 slides

439 views • 33 slides

334 views • 33 slides

Internet Control Message Protocol (ICMP)

Internet Control Message Protocol (ICMP). Objective. Why need ICMP? ICMP in relation to IP ICMP Format and Message Types Utilities that use ICMP: Ping Traceroute. ICMP.

558 views • 30 slides

Port Scanning

Port Scanning. Prabhaker Mateti. Port scanning. Attackers wish to discover services they can break into. Security audit: Why are certain ports open? sending a packet to each port, one at a time. Based on the type of response, an attacker knows if the port is used.

473 views • 28 slides

SPP Version 1 Router Traffic Examples

SPP Version 1 Router Traffic Examples. John DeHart. Traffic Examples. Ingress: ICMP Echo Request ICMP Echo Reply ICMP Error msgs TCP or UDP Preconfigured for GPE, NPE, CP No Entry Egress: ICMP Echo Request ICMP Echo Reply ICMP Error Msg TCP or UDP Preconfigured No Entry.

194 views • 19 slides

I nternet C ontrol M essage P rotocol

125 views • 12 slides