Continue posting questions on the e-mail list. Midterm exam ... delete the mapping to free up the port #s. Yet ... Must ensure all packets pass by the proxy ...
Web proxy assignment. Due at 6pm on Friday March 7 ... Transparent Web proxy caches. Application accelerators. 7. Two Views of Middleboxes. An abomination ...
'Any intermediate device performing functions other than the normal, standard ... rejecting some packets, may cause connectivity problems that are difficult to ...
'A middlebox is defined as any intermediary device performing ... Do NATS change DSCP? Investigate security implications of reporting middlebox internals ...
address lookup. call setup. call termination. Not all steps ... HTTP and DNS tunneling are not legitimate. TURN could be OK ... lookup requests, data streams. ...
... Previous Version Major clarifications throughout motivation and goals sections Significant details on transport layer decomposition Middleboxes can split ...
Net Neutrality Openness vs. managing traffic Debate in public, struggle in legislation, war in the Internet ISPs are already installing middleboxes capable of ...
Cheating with ECN-capable ACK packets? If the receiver ... If the sender cheats, the receiver can't easily detect it. Middleboxes probably could detect it. ...
Martin Stiemerling, J rgen Quittek, Lars Eggert {stiemerling|quittek ... One intermediate version -04. Diff between -03 and -05 ... HIP ESP data traffic. For ...
Adapted document to new focus. Lars jumped onboard. Diff between -02 and -03 is available here ... HIP's IPsec data exchange problems. 3. Recommendations ...
End-to-End Issues Al Harris CS 598ig 9/28/2005 Where is the Work Done? In the network Sensor fusion Active networks NAT At the endpoints Using acknowledgements for ...
OCALA: An Architecture for Supporting Legacy Applications over Overlays ... Works on Linux and Windows XP/2000 (using cygwin) Implemented RON and i3 OC-D modules. ...
Telematics Group. Institute for Informatics. University of G ttingen, Germany ' ... Telematics group. University of G ttingen, Germany. Problems of Path ...
The SYN/ACK packet can be sent as ECN-Capable only in response to an ECN-setup SYN packet. ... Set initial cwnd to one packet: Instead of setting cwnd to 2-4 packets. ...
20 min Report from HIP and Related Architectures workshop. 15 min ... How to 'cross the chasm' between architecture and reality (Early Adopters)? Architectures ...
Makes use of Internet Control Message Protocol (ICMP) messages ... Looking Glass Servers. Offer access to selected router commands. TRACEROUTE: LIMITATIONS (2) ...
Primarily just on the access (first hop) router and firewalls/NAT boxes at border routers. ... Mobile signals a new border firewall/NAT box upon routing change. ...
Specifies a modification to RFC 3168 to allow TCP SYN/ACK packets to be ECN-Capable. ... Avoids the retransmit timeout when a SYN/ACK packet would have been dropped. ...
SIP responses get bigger due to response aggregation resulting from forking, R-R ... Analogous to ICMP behavior used by traceroute. WG List Discussion ...
... scopes, each one identified by a scope ... i.e. matching RIds within a certain scope (SId) ... to scope 00A1 legitimate. Actual data is not. sent to the RP ...
Considering how well they address the limitations, and emerging challenges ... do want efficient, accurate transfer of data in order, in a timely fashion ...
Avoids the retransmit timeout when a SYN/ACK packet is dropped. ... if that packet is dropped or marked, the sender waits for a retransmit timeout. ...
Prints a line with RTT for each reply. Statistical summary when finished ... Works nicely with state-of-the art configurations (jumbo frames, SACK etc.) and ...
Bob Braden -- 3 May 2001. 1. From Protocol Stack to Protocol Heap -- Role-Based Architecture (RBA) ... Header data structure is a logical heap of RSHs. ...
Implementations create state at servers before connection is fully established ... matching. to signify attack. Advantages? Widely available. Fairly fast. Easy ...
Complexity of Mechanism Security policy is distributed among VLANs, ACLs, firewalls, NATs, ect. ... Topic # 7 * Related Work Network Protection Mechanisms Firewalls ...
... some consume bandwidth independent of the payload (Pseudowire WG charter mentions CC, but drafts and RFCs restrict use to dedicated paths because proper CC ...
DNS Tutorial @ IETF-63 lafur Gu mundsson OGUD consulting Peter Koch DENIC Tutorial Overview Goal: Give the audience basic understanding of DNS to be able to ...
... the Network: The Emergence of Programmable Network Elements. Randy H. Katz ... Blue 'standard' components. Yellow components added & configured per-application ...