03-01-2025 07:48 AM
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
03-01-2025 07:55 AM
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
03-01-2025 08:38 AM
Hello @Lalaram Raika
Command #ip routing configured on c9300?
Do #show vlan and #show int status and share outputs please.
03-01-2025 09:09 PM
03-02-2025 12:19 AM
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 ?
03-04-2025 01:14 AM
all are fine
03-02-2025 01:37 AM - edited 03-02-2025 02:44 AM
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.
03-04-2025 01:16 AM
all are fine but still not resolved
03-04-2025 01:43 AM
Have you seen my reply from 2 days ago? Have you performed the connectivity tests mentioned in the reply?
03-04-2025 01:47 AM
yes
03-04-2025 01:48 AM
could you share your contact please so i can reach directly
03-04-2025 02:56 AM
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
03-04-2025 04:46 AM
All is good as concerned Network from your point of view ?
Have you check endpoint's side ? Windows PC ? Desactivated the Windows Firewall ?
03-04-2025 06:16 AM
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?
03-04-2025 11:20 PM
i think it's enough for your response but still not working
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