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traceroute in 6509

traceroute in 6509

hi when i run a traceroute in a 6509 switch it is giving the below

details

BHUSD_6509#traceroute 12.164.240.161

Type escape sequence to abort.
Tracing the route to 12.164.240.161

  1  *  *  *
  2  *  *  *
  3  *  *  *
  4  *  *  *
  5  *  *  *
  6  *  *  *
  7  *  *  *
  8  *  *  *
  9  *  *  *
10  *  *  *
11  *  *  *
12  *  *  *
13  *  *  *
14  *  *  *
15  *  *  *
16  *  *  *
17  *  *  *
18  *  *  *
19  *  *  *
20  *  *  *
21  *  *  *
22  *  *  *
23  *  *  *
24  *  *  *
25  *  *  *
26  *  *  *
27  *  *  *
28  *  *  *
29  *  *  *
30  *  *  *

I am not getting a ip address or whatosever should come is that normal or anything we should do can you please help me on this

11 Replies 11

Jon Marshall
Hall of Fame
Hall of Fame

Probably means the 6500 does not have a route for that network. Can you do a "sh ip route 12.164.240.161" and see what you get ?

Jon

I get

BHUSD_6509#sh ip route 12.164.240.161

Routing entry for 12.164.240.161/32

Known via "static", distance 1, metric 0

Routing Descriptor Blocks:

  • 172.25.254.1

Route metric is 0, traffic share count is 1

karthik

karthikgopi wrote:

I get

BHUSD_6509#sh ip route 12.164.240.161

Routing entry for 12.164.240.161/32

  Known via "static", distance 1, metric 0

  Routing Descriptor Blocks:

  • 172.25.254.1

      Route metric is 0, traffic share count is 1

karthik

Karthik

So 172.25.254.1 - can you do a "sh ip route 172.25.254.1"

If there is no route for that then that is your problem. If there is log on to the next hop and see if there is anything that would block the traceroute.

Jon

BHUSD_6509#sh ip route 172.25.254.1

Routing entry for 172.25.254.0/24

Known via "connected", distance 0, metric 0 (connected, via interface)

Redistributing via eigrp 1

Routing Descriptor Blocks:

  • directly connected, via GigabitEthernet1/44

Route metric is 0, traffic share count is 1

Hi,

Is 172.25.254.1 IP belongs to checkpoint firewall ??

Can you check is there any ACL is blocking your traceroute ?? can you enable logging and try to capture the log.

Regards

Karuppu

Hi

I have don’t have a gateway of last resort in this switch, so do you think because of that if I ping any external ip I am not getting the ip address in trace route

Karthik

BHUSD_6509#sh ip route 172.25.254.1

Routing entry for 172.25.254.0/24

  Known via "connected", distance 0, metric 0 (connected, via interface)

  Redistributing via eigrp 1

  Routing Descriptor Blocks:

  • directly connected, via GigabitEthernet1/44

      Route metric is 0, traffic share count is 1

Hi Karthik,

Try traceroute with extended command from your switch like

6509switch#traceroute ip

Target IP address: 10.6.2.3
Source address: 10.1.30.1
Numeric display [n]: y
Timeout in seconds [3]:
Probe count [3]:
Minimum Time to Live [1]:
Maximum Time to Live [30]:
Port Number [33434]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Type escape sequence to abort.
Tracing the route to 10.6.2.3

  1 10.108.245.5 0 msec
    10.108.244.1 0 msec
    10.108.245.5 4 msec
  2  *  *
    10.96.4.246 4 msec
  3 10.97.20.249 44 msec
    10.96.20.245 44 msec
    10.97.20.249 44 msec
  4 10.132.245.6 48 msec
    10.132.244.6 44 msec
    10.132.245.6 44 msec
  5 10.2.25.22 44 msec 44 msec 44 msec
  6  *  *  *
  7 10.6.24.30 44 msec 48 msec 48 msec
  8 10.6.2.3 48 msec *  48 msec

What my concern is when you are tracing a route your outgoing interface will be the source which in genral case are never routed, so try with mentioning the source ip and traceroute it should work.

Hope to Help !!

Remember to rate the helpful post

Ganesh.H

Hi

I have don’t have a gateway of last resort in this switch, so do you think because of that if I ping any external ip I am not getting the ip address in trace route

Karthik

Hi

I have don’t have a gateway of last resort in this switch, so do you think because of that if I ping any external ip I am not getting the ip address in trace route

Karthik

Hi Karthik,

As your routes for specific subnets are getting learned via peer end destination in that case you dont need,As suggested try the trace route with extended command with some source interface ip address which is advertise in routing.

hope to help !!

Remember to rate helpful post

Ganesh.H

Hi

I have don’t have a gateway of last resort in this switch, so do you think because of that if I ping any external ip I am not getting the ip address in trace route

Karthik

Can you ping the destination IP?

Can you trace using a vlan has source on the cmd CLI, that should work.

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