cannot set NTP server and others
cannot set NTP server and others
cannot set NTP server and others
2019-03-06 17:19:51
Model: T1600G-28PS(TL-SG2424P)
Hardware Version: V3
Firmware Version: 3.0.0 Build 20180116 Rel.63705(s)

Hi,

i am evaluating new switches for our business and come to the T1600G series.

I have some questions regarding the setup and hope someone can help me with this?

 

I have the problem that I cannot enter the NTP server if it is in the local LAN.

The net is 172.16.202.0/24

NTP server is 172.16.202.55

another NTP server is 172.16.202.254

switch is 172.16.202.10

 

via cli:

 

sw7654321-1(config)#system-time ntp UTC 172.16.202.55 172.16.202.254 24
 NTP backup server IP address is invalid.

 

If I use any phantasy IP outside of the local net it accepting the values.

 

When connecting via SSH, how can the key exchange algorithm be changed. It is still diffie-hellman-group1-sha1

 

I have one port configured as trunk port and do not want any native vlan on this. How I get rid of this default untagged VLAN1 on that port?

interface gigabitEthernet 1/0/20
descr uplink_eth0
switchport general allowed vlan 510,511,512 tagged

 

is there an equivalent to cisco (config)#default interface gi23

to clear the config of an interface it is painful to use the "no" form for each line in the interface configuration.

 

I did not find a way to show all LLDP neighbors. show lldp neigbors requires to specify an interface. Even no range is possible. To find an connected device, you need to go through all ports one by one.

 

Hope someone have some ideas.

Thanks and best regards

 

 

 

 

 

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2 Replies
Re:cannot set NTP server and others
2019-03-07 10:01:55

ThomasD wrote

Hi,

i am evaluating new switches for our business and come to the T1600G series.

I have some questions regarding the setup and hope someone can help me with this?

 

I have the problem that I cannot enter the NTP server if it is in the local LAN.

The net is 172.16.202.0/24

NTP server is 172.16.202.55

another NTP server is 172.16.202.254

switch is 172.16.202.10

 

via cli:

 

sw7654321-1(config)#system-time ntp UTC 172.16.202.55 172.16.202.254 24
 NTP backup server IP address is invalid.

 

If I use any phantasy IP outside of the local net it accepting the values.

 

When connecting via SSH, how can the key exchange algorithm be changed. It is still diffie-hellman-group1-sha1

 

I have one port configured as trunk port and do not want any native vlan on this. How I get rid of this default untagged VLAN1 on that port?

interface gigabitEthernet 1/0/20
descr uplink_eth0
switchport general allowed vlan 510,511,512 tagged

 

is there an equivalent to cisco (config)#default interface gi23

to clear the config of an interface it is painful to use the "no" form for each line in the interface configuration.

 

I did not find a way to show all LLDP neighbors. show lldp neigbors requires to specify an interface. Even no range is possible. To find an connected device, you need to go through all ports one by one.

 

Hope someone have some ideas.

Thanks and best regards

 

 

Hi ThomasD

 

1. About NTP issue, you can try to change the NTP server 172.16.202.254 to other IP address. Such as 172.16.202.10. I meet the same issue and I think the last eight bit cannot more than 224.

 

2.About remove the port from VLAN1, maybe use the following CLI?

interface gigabitEthernet 1/0/20

no switchport general allowed vlan 1

 

3. I also cannot find the CLI command to show all neighbors.

https://static.tp-link.com/2018/201806/20180628/1910012408_T1600G_CLI.pdf

 

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Re:Re:cannot set NTP server and others
2019-03-07 16:51:10

Hi Andone,

 

thanks for reply.

I was not expecting such bug with ntp server IP. I hope it will be fixed in the next firmware.

With the other things, I know it is not cisco. the price must come from something. But in general the switches do what they should :)

Thanks and best regards

Thomas

 

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