cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
529
Views
3
Helpful
17
Replies

inter-vlan routing issue

Lalaram Raika
Level 1
Level 1

hi engineers 

i have an issue with cat 9300 

i have 9300 as core and downlink connected 3 cat 1300 

all are with trunking ports , i have 5 vlans on core as following 192.168.1.0, 2.0, 3.0, 4.0, 5.0

each vlan have users but they are not able to ping each other

please help immidiate

17 Replies 17

Hello @Lalaram Raika ,

in order for inter-vlan routing to work, the PC's in a certain vlan should have the default gateway configured as the SVI IP address for that vlan on the 9300. 

For example the vlan with subnet 192.168.1.0 should have a SVI configured on the 9300:

interface vlan 11

 ip address 192.168.1.1 255.255.255.0

The rest of the SVI's are configured the same for the other vlans.

A PC in the vlan with subnet 192.168.1.0/24 would have to have the default gateway configured as 192.168.1.1

HTH

Regards, LG
*** Please Rate All Helpful Responses ***

M02@rt37
VIP
VIP

Hello @Lalaram Raika 

Command #ip routing configured on c9300?

Do #show vlan and #show int status and share outputs please.

Best regards
.ı|ı.ı|ı. If This Helps, Please Rate .ı|ı.ı|ı.

Lalaram Raika
Level 1
Level 1

Thanks @Lalaram Raika 

Trunk on c1300 side are UP ?

VLANs are configured on c1300 ?

Each ports on c1300 where endusers are connected are in mode access ?

Best regards
.ı|ı.ı|ı. If This Helps, Please Rate .ı|ı.ı|ı.

all are fine

Hello @Lalaram Raika ,

are the PC's in the different VLAN's able to access external resources like the Internet?

I would also check the firewall settings on the PC's - maybe disable it to test connectivity between PC's in different VLAN's.

Also, are there any access lists configured on the SVI's?

And also, can a PC in VLAN 1 for example, ping

1. it's own gateway 192.168.1.1

2. ping the default gateway of VLAN 2 - 192.168.2.1

If both pings are successful, then check the firewall config on the PC's.

Regards, LG
*** Please Rate All Helpful Responses ***

all are fine but still not resolved

Have you seen my reply from 2 days ago? Have you performed the connectivity tests mentioned in the reply?

Regards, LG
*** Please Rate All Helpful Responses ***

yes

Lalaram Raika
Level 1
Level 1

could you share your contact please so i can reach directly

 

Lalaram Raika
Level 1
Level 1

As i already shown you in the configuration  route is available , svi has ip , each user has gateway as svi ip and all uplink and downlink are int trunk mode, each switch has vlans and vlan1's user is reachable to gateway to another vlan's gateway

Ok @Lalaram Raika 

All is good as concerned Network from your point of view ?

Have you check endpoint's side ? Windows PC ? Desactivated the Windows Firewall ?

Best regards
.ı|ı.ı|ı. If This Helps, Please Rate .ı|ı.ı|ı.

What about:

And also, can a PC in VLAN 1 for example, ping

1. it's own gateway 192.168.1.1

2. ping the default gateway of VLAN 2 - 192.168.2.1

If both pings are successful, then check the firewall config on the PC's.

Can you confirm that both pings work?

Regards, LG
*** Please Rate All Helpful Responses ***

i think it's enough for your response but still not working

LalaramRaika_0-1741159203036.png