Vlan overlap issue

[dale.hopper]

Having a problem trying increase vlan20 to have 64 addresses rather than 32 to fit in the following VLAN config

10	Server	10.21.112.0/27	10.21.112.30	255.255.255.224
20	CCTV & SECURITY (DOOR ACCESS)	10.21.112.32/27	10.21.112.62	255.255.255.224
40	Cashless Catering - SHUTDOWN	10.21.112.96/28	10.21.112.110	255.255.255.240
50	NEW ICT Support	10.21.112.112/28	10.21.112.126	255.255.255.240
60	Maths and OLD ICT Support	10.21.112.128/25	10.21.112.254	255.255.255.128

when I try to increase the CCTV VLAN20 to (#ip address 10.21.112.94 255.255.255.192) I get an 10.21.112.64 overlaps with VLAN40 error

Can anyone offer any insight - we are using VTP also

Regards

Dale

[dale.hopper]

Hi /Mohammed thanks for your reply, if I understand that correctly your solution doesn't help, its actually makes the CCTV/Door Access VLAN on a /28 meaning I would only have 16 usable address, I'm trying to make that VLAN larger its currently on a /27

Apologies if i'm miss-understanding

[mohammed01701]

Hi  dale.hopper!

Now i edited the previous post. 

Hope it helps:

/Mohammed