I'm troubleshooting application issue and would like to know whether the request from client is reaching the vm-host for that I'm trying to use tcpdump on the Leaf.
Could you help us to know how to capture traffic for a vm-Host in the ACI? I tried as following, but failed. It seems that tcpdump cannot capture the data for a tunnel interface.
Here's what I did in two steps:
Step1: Based on the vm-host's ip address(192.168.0.10), find out the leaf switch from APIC
EP Tracker: 1181-1182, vPC:ucs01-B-ifPolGrp Tenant: red Appliction: Apple EPG:Ball2019 IP:192.168.0.10
Step2: Based on the above info., I know the the vm-host with 192.168.0.10 is connecting to Leaf 1181 & 1182 by using VPC. I'm trying to find out which "Interface" is connected to the vM-host
Leaf1181# show system internal epm endpoint ip 192.168.0.10
MAC : 0050.56cc.5edf ::: Num IPs : 1
IP# 0 : 192.168.0.10 ::: IP# 0 flags :
Vlan id : 679 ::: Vlan vnid : 8945689 ::: VRF name : common:Internal-vrf
BD vnid : 15630221 ::: VRF vnid : 2588672
Phy If : 0 ::: Tunnel If : 0x18010178
Interface : Tunnel376 --------------------------------------->Infterce is Tunnel376
Flags : 0x80004c05 ::: sclass : 49503 ::: Ref count : 5
EP Create Timestamp : 12/19/2019 09:10:15.670315
EP Update Timestamp : 01/13/2020 14:39:59.201569
EP Flags : local|vPC|IP|MAC|sclass|timer|
::::
Leaf1181# tcpdump -i Tunnel376 -f port 7000 -vv
tcpdump: Tunnel376: No such device exists ----> failed, it sounds the tcpdump doesn't support the "Tunnel" interface
(SIOCGIFHWADDR: No such device)
