cancel
Showing results for 
Search instead for 
Did you mean: 
cancel

TCPDump Error

Ajinkya.Purohit
Beginner
Beginner

Hi Folks

 

I need an explanation in this regards. I am using Ge0/0 and Ge0/1 as WAN Ports and Ge0/3 as LAN Port on Cloud vEdge. Ge0/2 has been received for Local Internet link.

 

Now, the LAN to LAN Routing works fine but I am not able to capture the TCPDump output of port Ge0/3. So also this port is not visible under ifconfig output.

 

vpn 1
router
ospf
timers spf 200 1000 10000
redistribute omp
area 0
interface ge0/3
network point-to-point
exit
exit
!
!
interface ge0/3
description "Connected to LAN"
ip address 172.16.100.17/30
no shutdown
!
omp
advertise ospf external
advertise connected
!

BR01A# show interface ge0/0 | notab
interface vpn 0 interface ge0/0 af-type ipv4
ip-address 192.168.200.122/30
if-admin-status Up
if-oper-status Up
if-tracker-status NA
encap-type null
port-type transport
mtu 1500
hwaddr 00:50:56:a5:70:a7
speed-mbps 1000
duplex full
tcp-mss-adjust 1416
uptime 11:22:17:19
rx-packets 6431377
tx-packets 5174767

 

BR01A# tcpdump interface ge0/3
tcpdump -p -i ge0_3 -s 128 in VPN 0
tcpdump: ge0_3: No such device exists
(SIOCGIFHWADDR: No such device)

 

BR01A:~$ ifconfig -a | grep ge
ge0_0 Link encap:Ethernet HWaddr 00:50:56:a5:70:a7
ge0_1 Link encap:Ethernet HWaddr 00:50:56:a5:71:ba
ge0_2 Link encap:Ethernet HWaddr 00:50:56:a5:48:11
BR01A:~$

1 ACCEPTED SOLUTION

Accepted Solutions

Danny De Ridder
Cisco Employee
Cisco Employee

Please try the same command specifying VPN 1 :

tcpdump vpn 1 interface ge0/3

By default the tcpdump will get executed for VPN 0 whilst your interface is present under VPN 1.

 

View solution in original post

1 REPLY 1

Danny De Ridder
Cisco Employee
Cisco Employee

Please try the same command specifying VPN 1 :

tcpdump vpn 1 interface ge0/3

By default the tcpdump will get executed for VPN 0 whilst your interface is present under VPN 1.

 

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: