blank.gif (43 bytes)

Church Of The
Swimming Elephant

Search: Source Route Options Connected: An Internet Encyclopedia Source Route Options

Up: Connected: An Internet Encyclopedia
Up: Requests For Comments
Up: RFC 1812
Up: 5.3.13 IP Options
Prev: Stream Identifier Option
Next: Record Route Option Source Route Options Source Route Options

A router MUST implement support for source route options in forwarded packets. A router MAY implement a configuration option that, when enabled, causes all source-routed packets to be discarded. However, such an option MUST NOT be enabled by default.


The ability to source route datagrams through the Internet is important to various network diagnostic tools. However, source routing may be used to bypass administrative and security controls within a network. Specifically, those cases where manipulation of routing tables is used to provide administrative separation in lieu of other methods such as packet filtering may be vulnerable through source routed packets.


Packet filtering can be defeated by source routing as well, if it is applied in any router except one on the final leg of the source routed path. Neither route nor packet filters constitute a complete solution for security.

Next: Record Route Option

Connected: An Internet Encyclopedia Source Route Options


Protect yourself from cyberstalkers, identity thieves, and those who would snoop on you.
Stop spam from invading your inbox without losing the mail you want. We give you more control over your e-mail than any other service.
Block popups, ads, and malicious scripts while you surf the net through our anonymous proxies.
Participate in Usenet, host your web files, easily send anonymous messages, and more, much more.
All private, all encrypted, all secure, all in an easy to use service, and all for only $5.95 a month!

Service Details

Have you gone to church today?
All pages ©1999, 2000, 2001, 2002, 2003 Church of the Swimming Elephant unless otherwise stated
Church of the Swimming Elephant©1999, 2000, 2001, 2002, 2003 is a wholly owned subsidiary of Packetderm, LLC.

Packetderm, LLC
210 Park Ave #308
Worcester, MA 01609