[SOLVED] Change submask network

[viniribeirossa]

full configs

[SOLVED] Change submask network

config config interface 'loopback' option device 'lo' option proto 'static' option ipaddr '127.0.0.1' option netmask '255.0.0.0' config globals 'globals' option packet_steering '1' option ula_prefix 'fd2b:ab7a:b23e::/48' config device option name 'br-lan' option type 'bridge' option igmp_snooping '1' list ports 'lan1' list ports 'lan2' list ports 'lan3' option hash_max '1024' option robustness '4' config interface 'lan' option device 'br-lan' option proto 'static' option ipa…

[cesarvog]

@viniribeirossa

config interface 'wifiguest'
	option proto 'static'
	option netmask '255.255.255.224'
	option ipaddr '10.8.8.224'

10.8.8.224 is out of the possible range of ip addresses. (10.8.8.128 to 10.8.8.159)

EDIT:
Sorry @lleachii , I meant to reply to @viniribeirossa

[lleachii]

@viniribeirossa

configs

???

It's the same.

@viniribeirossa

config interface 'wifiguest'
	option proto 'static'
	option netmask '255.255.255.224'
	option ipaddr '10.8.8.224'

@cesarvog

10.8.8.224 is out of the possible range of ip addresses

@lleachii

If you mean the range MK24 commented about (10.8.8.224/27), you were told that 224 is an invalid IP (224 IP is the Network Address - which is invalid).

@mk24

That is still wrong. You can't use the first or last IP in a range as a device's address.

• Why are you using invalid IPs?
• Are you having an issue understanding invalid IPs in a subnet

[viniribeirossa]

All 8 of the Possible /27 Networks for 10.8.8.*

[lleachii]

@viniribeirossa

All 8 of the Possible /27

• Is there a reason you're showing us this?
• Do you understand it now; or did you post it to ask about the invalid IP 224?

If this wasn't understood, you'll have to configure a valid network/IP/range for the OpenWrt before it'll work.

Only utilize the "usable addresses".

[cesarvog]

@viniribeirossa

I created a vlan with the ip 10.8.8.128/27 but when I connect it says NO INTERNET

In your OP you stated you created a VLAN with the above addressing and sub-net mask. This LIMITS the possible addresses you can use, meaning your IP address MUST be inside the afore mentioned range (129 to 158). The other possible addresses are to be used in OTHER networks. They don't belong to the one you chose in your opening post.

[viniribeirossa]

I changed the ip address range but the same problem appears

[mk24]

With a /27 netmask, examine the table and find that x.x.x.128 is not in any Usable Host Range. This is true whether the first part of the IP is 10.8.8 or 192.168.2. The router is one of the addressable hosts on the network. It will not work to set your router's IP to a non-usable IP.

By convention, the first Usable Host in the subnet (x.x.x.129 here) is used for the router IP, and the others (.130 up to .159) issued by the DHCP server to endpoint hosts.

[cesarvog]

You never mentioned network 192.168.2.xxx/xx.
There is clearly some kind of miscommunication happening here. I rest my case.

[viniribeirossa]

It worked!!!! haha ha
thanks, but why doesn't it work with the correct IP calculation?

[viniribeirossa]

I just changed the IP address, to test, but the friend above helped me. thank you friend

[viniribeirossa]

Could you explain to me why the 'network address' is not valid in this calculation?

IP Subnet Calculator