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Vlan Routing on Cisco Switch

Posted on 2014-02-18
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Last Modified: 2014-03-30
I created a VLAN on are core stack of switches, I created the interface and assigned it an IP address. Then I set a few ports to the new VLAN but the vlan will not route. It is not pingable from other devices in are network. The refault rout goes to are windows server for DHCP op for that vlan. The Vlan shows as UP, UP. I have implemented other VLAN this exact same way and have had no promlems. Is there anything I can do to see what wrong with it?

I have deleted and re-added the Vlan and nothing has changed.

I have attached a "show run int" and "show int".
2-18-2014-9-26-55-AM.png
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Question by:Matthew13
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14 Comments
 
LVL 1

Expert Comment

by:Muhammed Rummaneh
ID: 39867453
what is cisco switch series ? is it L3 switch ?
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LVL 1

Expert Comment

by:Muhammed Rummaneh
ID: 39867463
i think it is 3750 switch ,

Ok try to use command

# ip routing

!--- this Command Enable IP routing for interVLAN routing.
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Author Comment

by:Matthew13
ID: 39867646
It is 3750 L3 stacked switches. It is are Core stack of switches that is already in production and has other Vlans routing on it
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LVL 15

Expert Comment

by:Robert Sutton Jr
ID: 39867685
Can you issue:  sh ip route

And paste that back here?
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Author Comment

by:Matthew13
ID: 39867728
N-3750Stack#show ip rout
N-3750Stack#show 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 192.168.174.9 to network 0.0.0.0

     192.168.10.0/29 is subnetted, 1 subnets
S       192.168.10.48 [1/0] via 192.168.174.10
C    192.168.172.0/24 is directly connected, Vlan3
     192.168.173.0/25 is subnetted, 2 subnets
C       192.168.173.128 is directly connected, Vlan6
C       192.168.173.0 is directly connected, Vlan173
     192.168.170.0/25 is subnetted, 2 subnets
C       192.168.170.128 is directly connected, Vlan4
C       192.168.170.0 is directly connected, Vlan6
C    192.168.187.0/24 is directly connected, Vlan187
C    192.168.171.0/24 is directly connected, Vlan2
S*   0.0.0.0/0 [1/0] via 192.168.174.9
C    192.168.180.0/23 is directly connected, Vlan180
C    192.168.174.0/23 is directly connected, Vlan1
N-3750Stack#
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LVL 12

Expert Comment

by:Infamus
ID: 39867801
what is the ip address of the device on vlan187 you are trying to ping?

Is it in the subnet of 192.168.187.0/24?

Is the gateway setup as 192.168.187.1 on that device?

Can you also do "no shut" on vlan 187 interface just in case?
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Author Comment

by:Matthew13
ID: 39867832
I don't have a device on that subnet, it won't route to the DHCP server.

I set up a port on one of are switches to access vlan 187 but it will not hand out the address.

the gateway is set up as 192.168.187.1

and the vlan is not shut down i just did the command again.
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LVL 12

Expert Comment

by:Infamus
ID: 39867850
Are you able to ping 192.168.187.1 from dhcp server?
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Author Comment

by:Matthew13
ID: 39868073
No I cannot
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LVL 12

Expert Comment

by:Infamus
ID: 39871301
can you post "sh vlan" and "sh int vlan 187?
0
 

Author Comment

by:Matthew13
ID: 39887152
Here it is i have also attached a notepad doc with this information so its easier to see.

N-3750Stack#show vlan

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active    Gi1/0/1, Gi1/0/2, Gi1/0/3, Gi1/0/4, Gi1/0/5, Gi1/0/6, Gi1/0/7, Gi1/0/8, Gi1/0/9, Gi1/0/10, Gi1/0/11, Gi1/0/12, Gi1/0/14, Gi1/0/17, Gi1/0/19, Gi1/0/20, Gi1/0/23, Gi1/0/24, Gi2/0/1, Gi2/0/2
                                                Gi2/0/4, Gi2/0/5, Gi2/0/6, Gi2/0/7, Gi2/0/8, Gi2/0/9, Gi2/0/10, Gi2/0/11, Gi2/0/12, Gi2/0/13, Gi2/0/15, Gi2/0/16, Gi2/0/17, Gi2/0/19, Gi2/0/20, Gi2/0/21, Gi2/0/23, Gi3/0/1, Gi3/0/2, Gi3/0/3
                                                Gi3/0/4, Gi3/0/5, Gi3/0/6, Gi3/0/7, Gi3/0/8, Gi3/0/9, Gi3/0/10, Gi3/0/11, Gi3/0/12, Gi3/0/13, Gi3/0/15, Gi3/0/16, Gi3/0/17, Gi3/0/19, Gi3/0/20, Gi3/0/21, Gi3/0/23, Gi3/0/24, Gi4/0/1
                                                Gi4/0/2, Gi4/0/4, Gi4/0/5, Gi4/0/6, Gi4/0/7, Gi4/0/17, Gi4/0/21, Gi4/0/22, Po2, Po3, Po4, Po5
2    Voice-Wired-192.168.170.0/24     active    
3    Voice-Wired-192.168.171.0/24     active    
4    Voice-Wireless-192.168.170.128/2 active    
5    DNC                              active    Gi4/0/23
6    Data-Wireless-192.168.170.0/25   active    
7    EngineeringControls-1(Non-routab active    
8    EngineeringControls-2(Non-routab active    
9    EngineeringControls-3(Non-routab active    
10   EngineeringControls-4(Non-routab active    
20   EngineeringAssignedRoutableSubne active    
99   PublicWireless                   active    
170  VLAN170                          active    
173  Design-Center                    active    
174  VLAN174                          active    
180  Engineering-Subnet               active    
187  IT-Subnet                        active    
1002 fddi-default                     act/unsup
1003 token-ring-default               act/unsup
1004 fddinet-default                  act/unsup
1005 trnet-default                    act/unsup

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1    enet  100001     1500  -      -      -        -    -        0      0  
2    enet  100002     1500  -      -      -        -    -        0      0  
3    enet  100003     1500  -      -      -        -    -        0      0  
4    enet  100004     1500  -      -      -        -    -        0      0  
5    enet  100005     1500  -      -      -        -    -        0      0  
6    enet  100006     1500  -      -      -        -    -        0      0  
7    enet  100007     1500  -      -      -        -    -        0      0  
8    enet  100008     1500  -      -      -        -    -        0      0  
9    enet  100009     1500  -      -      -        -    -        0      0  
10   enet  100010     1500  -      -      -        -    -        0      0  
20   enet  100020     1500  -      -      -        -    -        0      0  
99   enet  100099     1500  -      -      -        -    -        0      0  
170  enet  100170     1500  -      -      -        -    -        0      0  
173  enet  100173     1500  -      -      -        -    -        0      0  
174  enet  100174     1500  -      -      -        -    -        0      0  
180  enet  100180     1500  -      -      -        -    -        0      0  
187  enet  100187     1500  -      -      -        -    -        0      0  
1002 fddi  101002     1500  -      -      -        -    -        0      0  
1003 tr    101003     1500  -      -      -        -    -        0      0  
1004 fdnet 101004     1500  -      -      -        ieee -        0      0  
1005 trnet 101005     1500  -      -      -        ibm  -        0      0  

Remote SPAN VLANs
------------------------------------------------------------------------------


Primary Secondary Type              Ports
------- --------- ----------------- ------------------------------------------

N-3750Stack#show int vlan 187
Vlan187 is up, line protocol is up
  Hardware is EtherSVI, address is 0014.f215.58cc (bia 0014.f215.58cc)
  Description: IT Subnet
  Internet address is 192.168.187.1/24
  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive not supported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 1w1d, output 2w4d, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     796503 packets input, 78074772 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     4 packets output, 256 bytes, 0 underruns
     0 output errors, 2 interface resets
     0 output buffer failures, 0 output buffers swapped out
N-3750Stack#
putty.log
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LVL 12

Expert Comment

by:Infamus
ID: 39887286
Sorry, I decided not to contribute to EE any more.

Experts, please guide the author.

Thanks.
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Accepted Solution

by:
Matthew13 earned 0 total points
ID: 39953527
the Issue was that the rout was not in are Verizon PIP router. Once it was added everything worked as should.
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Author Closing Comment

by:Matthew13
ID: 39964664
Issue was resolved by me not the experts
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