 | Copyright © 2008, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |
In IPv6, extension headers are used to encode optional Internet-layer information. Extension headers are placed between the IPv6 header and the upper-layer header in a packet.
IPv6 enables you to chain extension headers together by using the next header field. The next header field, located in the IPv6 header, indicates to the router which extension header to expect next. If there are no more extension headers, the next header field indicates the upper-layer header (TCP header, UDP header, ICMPv6 header, an encapsulated IP packet, or other items).
| Copyright © 2008, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |