Symptom
In 93180-FX/93180-EX VXLAN environment with 7.0(3)I7(1) or newer versions, remote VTEP not reply the ICMP TTL exceed message during traceroute.
# trace 192.168.12.10
traceroute to 192.168.12.10 (192.168.12.10), 30 hops max, 40 byte packets
1 192.168.11.254 (192.168.11.254) 1.004 ms 0.621 ms 0.663 ms <<<local GW
2 * * * <<<remote VTEP
3 192.168.12.10 (192.168.12.10) 1.289 ms 0.816 ms 0.769 ms <<<remote host
Conditions
1. VXLAN environment
2. 93180-FX, 93180-EX with 7.0(3)I7(1) or newer version
Further Problem Description
Issue since the code-fix from CSCvf36441 in Tahoe platform
