decapsulation_router.seq - Verify that decapsulate IPv6
datagram in IPv4 packet
Router
decapsulation_router.seq [-tooloption ...] -p
decapsulation_router.def
Before this test starts, run initialize.seq.
This test verifies that NUT decapsulate the IPv6 packet in a
IPv4 packet
Network Topology
Link0
--------------------------
| |
TN NUT
| |
--------------------------
Link1
TN -- (Link0) -- NUT TN -- (Link1) -- NUT
--------------------- ------------------------
1.
===================>
IPv4 packet encapsulating IPv6 packet
Outer Header (IPv4)
src address : Off-link IPv4 address
dst address : NUT Link1 IPv4 address
Inner Header (IPv6)
src address : Off-link IPv6 global address
dst address : TN LINK0 IPv6 global address
2.
In NUT, received IPv4 packet is decapsulated, and forward
ICMPv6 Echo Request packet.
3.
<< JUDGMENT >>
<===================
ICMPv6 Echo Reply
IPv6 Header
src address : Off-link IPv6 global address
dst address : TN LINK0 IPv6 global address
<< PASS >>
NUT received ICMPv6 Echo Reply
<< FAIL >>
NUT did not receive ICMPv6 Echo Reply
perldoc V6evalTool