NM-CUE can not ping tftp

Unanswered Question
Jan 27th, 2010

Hi,

I have a NM-CUE in a 2811 router, I need to upgrade software but  I can't ping anything on lan, I can only ping router interface.

Here are some show outputs:

2811#sh interfaces service-Engine 1/0
Service-Engine1/0 is up, line protocol is up
  Hardware is I82559FE, address is 001e.7a5f.80e8 (bia 001e.7a5f.80e8)
  Interface is unnumbered. Using address of Vlan10 (10.0.8.10)
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255

2811#sh ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is 10.0.8.20 to network 0.0.0.0

     10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C       10.0.8.0/24 is directly connected, Vlan10
S       10.0.8.11/32 is directly connected, Service-Engine1/0

S*   0.0.0.0/0 [1/0] via 10.0.8.20

Thanks

hasrat

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Brandon Buffin Wed, 01/27/2010 - 13:37

Do you have a default gateway configured for the Service-Engine 1/0 interface? Such as:

interface Service-Engine1/0

service-module ip default-gateway 10.0.8.20

Can you post the rest of your configuration?

Hope this helps.

Brandon

Hasrat Raja Wed, 01/27/2010 - 14:47

here is the related config:

!
interface Service-Engine1/0
ip unnumbered Vlan10
no ip redirects
no ip unreachables
no ip proxy-arp
service-module ip address 10.0.8.11 255.255.255.0
service-module ip default-gateway 10.0.8.10
!

!
interface Vlan10
ip address 10.0.8.10 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 10.0.8.20
ip route 10.0.8.11 255.255.255.255 Service-Engine1/0

!

thanks

hasrat

Brandon Buffin Thu, 01/28/2010 - 05:32

Is the LAN address you're trying to ping on the same subnet (10.0.8.0/24)? Can you ping from the CME CLI to this address using VLAN10 as the source (ping source 10.0.8.10)?

Brandon

Hasrat Raja Thu, 01/28/2010 - 07:28

yes, here is the output:

2811#ping 10.0.8.20 source vlan 10

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.8.20, timeout is 2 seconds:
Packet sent with a source address of 10.0.8.10
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms
2811#

2811#ping 10.0.8.20 source 10.0.8.10

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.8.20, timeout is 2 seconds:
Packet sent with a source address of 10.0.8.10
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms
2811#

Hasrat Raja Thu, 01/28/2010 - 08:41

I can't, I reset CUE to factory default, still can't ping, when I do sh ip route I see 127.0.0.0 assigned to Loopback, I don't see it in config, how to get rid of it.

se-10-0-8-11> sh ip route
           DEST            GATE            MASK IFACE
       10.0.8.0         0.0.0.0   255.255.255.0 eth1
      127.0.0.0         0.0.0.0       255.0.0.0 lo
        0.0.0.0       10.0.8.10         0.0.0.0 eth1
se-10-0-8-11>

thanks

hasrat

Brandon Buffin Thu, 01/28/2010 - 08:46

This looks correct. Is there another device that is the gateway for the rest of your LAN. Does it have a route for 10.0.8.11 going to 10.0.8.10?

Brandon

Hasrat Raja Thu, 01/28/2010 - 09:09

I have tried that also, didn't help, how to see the loopback info ?

Brandon Buffin Thu, 01/28/2010 - 10:00

Hmm. . .Definitely sounds like a routing issue somewhere. Not sure what loopback info you're looking for.

Hasrat Raja Thu, 01/28/2010 - 11:17

loopback interface which shows up in sh ip route of cue:

se-10-0-8-11> sh ip route
           DEST            GATE            MASK   IFACE
       10.0.8.0         0.0.0.0   255.255.255.0   eth1
      127.0.0.0         0.0.0.0       255.0.0.0      lo

Brandon Buffin Thu, 01/28/2010 - 11:28

Yes, this is normal. I have a CUE that also shows a loopback interface and works properly.

Brandon

Hasrat Raja Thu, 01/28/2010 - 08:55

how to see the loopback information, I can't find any command to dispaly it.

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