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