Catalyst 3750 LAN Routing (Help ...)

[egemen1981]

İs it Possible to routing between the subnets below?

Clients : 192.6.1.0/23

GW(Catalyst 3750) : 192.6.1.7/23

Catalyst Default Route : 192.6.1.240 /24

What I want to achive is , 192.6.0.1-192.6.0.254 Clients can access to default gateway and can access other networks?

Regards.

[Latchum Naidu]

Hi,

The 192.6.0.1 network is different from the default gateway network.
You need to have VLAN's create on the Catalyst 3750 in order to make routing between 192.168.6.0/23 and 192.168.0.1/24 networks

HTH
Please click on the correct answer if this answered your question.
Regards,
Naidu.

[egemen1981]

Hi,

I Think there is a misunderstanding about subnets.

Our subnet is 192.6.1.0/23 (IP Range 192.6.0.1-192.6.1.254)

Client gateway is our catalyst switch (192.6.1.7/23)

Catalyst default GW is 192.6.1.240/24

All Clients((IP Range 192.6.0.1-192.6.1.254) can ping to 192.6.1.7 normally but Catalyst does not route (192.6.0.1-192.6.0.254) packets to its default gateway (192.6.1.240).

Catalyst only routes packet from clients(192.6.1.1-192.6.1.254) to  its default GW(192.6.1.240).

[milan.kulik · Accepted solution]

Hi,

IMHO, it seems you've got wrong subnet mask configured on your Catalyst.

Change it from /24 to /23 and everything should work.

BTW, I suppose you are using /23 subnet mask on your clients.

Why don't you configure your clients to use 192.6.1.240 as their default GW?

HTH,

Milan

[icewolf101 · Accepted solution]

The cat default GW subnet is overlapping the /23 subnet:

/23 - 192.6.0.1 - 192.6.1.254

/24 - 192.6.1.1 - 192.6.1.254

As Milan says, change the Cat default GW to the /23 subnet