cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
840
Views
0
Helpful
3
Replies

Inter-VLAN routing issue

tomislavtomasic
Level 1
Level 1

I have 2 SG300 and 1 SG500 switch.

I am trying to setup inter-VLAN routing and DHCP relay.

They are connected thusly:

switch1[port49]<->[port7]switch2[port48]<->[port49]switch3

On switch1 I have set up VLAN3 with subnet 172.16.3.0/24 and on switch3 I have VLAN2 with subnet 192.168.1.0/24.

I need these VLANs to be able to communicate between each other.

I can ping from APC connected to switch1 to VLAN2 and VLAN3 IPs on switch2, but I cannot ping to those VLANs on switch2 from a PC connected to switch3.

Also, when I connect to managment interface on switch3 I cannot ping VLAN2 and VLAN3 interface IPs on switch2.

Traffic on default VLAN1 is passing through, though.

I tried changing the cable that connects switch 2 and switch3, but it didn't help.

What could be the issue here?

3 Replies 3

kcnajaf
Level 7
Level 7

Hi Tom,

Could you please provide the output of "switchport interface trunk" and "show cdp nei".

Regards

Najaf

Please rate when applicable or helpful !!!

Hi my friends,

         I also suffer same problem.  I have SF300 two switches.

SW1  Gi4 to SW2 Gi4:  (This for redundancy only)

I configure all vlans and ip address to it in SW1, i configure router as dhcp server with different 5 pools.  Only Pool which i working is from default vlan1 and other vlans not taking ip address from dhcp server and thier is no ping in between vlan (intervlan routing issue also.

Attached my SW2 configuration.

=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2013.02.18 19:31:07 =~=~=~=~=~=~=~=~=~=~=~=

sh r

SW2(config)#$                                                 sh run

% Unrecognized command

SW2(config)#do sh run

config-file-header

SW2

v1.2.7.76 / R750_NIK_1_2_584_002

CLI v1.0

file SSD indicator encrypted

@

ssd-control-start

ssd config

ssd file passphrase control unrestricted

no ssd file integrity control

ssd-control-end cb0a3fdb1f3a1af4e4430033719968c0

!

vlan database

vlan 2-7

exit

voice vlan id 5

voice vlan oui-table add 0001e3 Siemens_AG_phone________

voice vlan oui-table add 00036b Cisco_phone_____________

voice vlan oui-table add 00096e Avaya___________________

voice vlan oui-table add 000fe2 H3C_Aolynk______________

voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone

voice vlan oui-table add 00d01e Pingtel_phone___________

More: ,  Quit: q or CTRL+Z, One line:

voice vlan oui-table add 00e075 Polycom/Veritel_phone___

voice vlan oui-table add 00e0bb 3Com_phone______________

ip dhcp relay address 10.1.6.252

ip dhcp relay enable

ip dhcp information option

bonjour interface range vlan 1

hostname SW2

!

interface vlan 1

no ip address dhcp

!

interface vlan 2

name " VLAN_2"

ip address 10.1.2.1 255.255.255.0

ip dhcp relay enable

!

interface vlan 3

name "VLAN_3"

ip address 10.1.3.1 255.255.255.0

ip dhcp relay enable                                                     

!

interface vlan 4

name "VLAN_4"

ip address 10.1.4.1 255.255.255.0

ip dhcp relay enable

!

interface vlan 5

name "IP Telephony VLAN"

ip address 10.1.5.1 255.255.255.0

ip dhcp relay enable

!

interface vlan 6

name "Switches VLAN"

ip address 10.1.6.1 255.255.255.0

ip dhcp relay enable

!

interface vlan 7

name "Master VLAN"

ip address 10.1.7.1 255.255.255.0

ip dhcp relay enable

!

interface fastethernet1                                                  

switchport mode access

!

interface fastethernet2

switchport mode access

!

interface fastethernet3

switchport mode access

!

interface fastethernet4

switchport mode access

!

interface fastethernet5

switchport mode access

!

interface fastethernet6

switchport mode access

!

interface fastethernet7

switchport mode access

!

interface fastethernet8

switchport mode access                                                    

!

interface fastethernet9

switchport mode access

switchport access vlan 2

!

interface fastethernet10

switchport mode access

switchport access vlan 2

!

interface fastethernet11

switchport mode access

switchport access vlan 2

!

interface fastethernet12

switchport mode access

switchport access vlan 2

!

interface fastethernet13

switchport mode access

switchport access vlan 2

!

interface fastethernet14                                                    

switchport mode access

switchport access vlan 3

!

interface fastethernet15

switchport mode access

switchport access vlan 3

!

interface fastethernet16

switchport mode access

switchport access vlan 3

!

interface fastethernet17

switchport mode access

switchport access vlan 3

!

interface fastethernet18

switchport mode access

switchport access vlan 4

!

interface fastethernet19

switchport mode access

switchport access vlan 4                                                     

!

interface fastethernet20

switchport mode access

switchport access vlan 4

!

interface fastethernet21

switchport mode access

switchport access vlan 4

!

interface fastethernet22

switchport mode access

switchport access vlan 4

!

interface fastethernet23

switchport mode access

switchport access vlan 4

!

interface fastethernet24

switchport mode access

switchport access vlan 4

!

interface fastethernet25

switchport mode access

switchport access vlan 4

!

interface fastethernet26

switchport mode access

switchport access vlan 4

!

interface fastethernet27

switchport mode access

switchport access vlan 4

!

interface fastethernet28

switchport mode access

switchport access vlan 5

!

interface fastethernet29

switchport mode access

switchport access vlan 5

!

interface fastethernet30

switchport mode access

switchport access vlan 5                                                    

!

interface fastethernet31

switchport mode access

switchport access vlan 5

!

interface fastethernet32

switchport mode access

switchport access vlan 5

!

interface fastethernet33

switchport mode access

switchport access vlan 5

!

interface fastethernet34

switchport mode access

switchport access vlan 5

!

interface fastethernet35

switchport mode access

switchport access vlan 5

!

interface fastethernet36                                                     

switchport mode access

switchport access vlan 5

!

interface fastethernet37

switchport mode access

switchport access vlan 5

!

interface fastethernet38

switchport mode access

switchport access vlan 5

!

interface fastethernet39

switchport mode access

switchport access vlan 5

!

interface fastethernet40

switchport mode access

switchport access vlan 5

!

interface fastethernet41

switchport mode access

switchport access vlan 5                                                     

!

interface fastethernet42

switchport mode access

switchport access vlan 5

!

interface fastethernet43

switchport mode access

switchport access vlan 5

!

interface fastethernet44

switchport mode access

switchport access vlan 5

!

interface fastethernet45

switchport mode access

switchport access vlan 5

!

interface fastethernet46

switchport mode access

switchport access vlan 5

!

interface fastethernet47                                                     

switchport mode access

switchport access vlan 7

!

interface fastethernet48

switchport mode access

switchport access vlan 6

!

interface gigabitethernet4

switchport trunk allowed vlan add 2-7

Description Connection To SW1

!

SW2(config)#                                                                

Hello Tom,

Kindly ensure atleast One physical port is part of the VLAN and Active (it must be up on at least one port).

Thanks and regards,

Siva