Whether the DHCP function of S series switch support static IP address check


After DHCP snooping is configured, S series switches do not check static IP addresses by default. You can enable the IPSG function and configure static binding entries to enable the static IP address check function.

Other related questions:
Static DHCP binding on S series switch
In static DHCP binding mode, fixed IP addresses can be assigned to DHCP clients. Versions and models of S series switches except S1700 switches that support this function are as follows: - All switch models in V200R005 and later versions, except the S2720 in V200R006C10 - All switch models except the S5700LI, S5700S-LI, and S2750 in versions earlier than V200R005

Check DHCP IP address lease on S series switch
On S series switches except S1700 switches, you can view the lease of IP addresses in an address pool as follows: - If an interface address pool is used, run the display ip pool interface interface-pool-name [ start-ip-address [ end-ip-address ] ] command. - If a global address pool is used, run the display ip pool name ip-pool-name [ start-ip-address [ end-ip-address ] ] command. The Lease field in the command output indicates the lease of IP addresses.

Support of static DHCP binding by S series switches
You can assign fixed IP addresses to clients using static DHCP binding. The support by S series switches excluding the S1700 is as follows: - V200R005 and later versions: All switch models support this function excluding the S2720 in V200R006C10. - Earlier versions of V200R005: All switch models support this function excluding the S5700LI/S5700S-LI/S2750.

Static DHCP binding entries supported by S series switches
S series switches excluding the S1700 support static DHCP binding. Ensure that IP addresses exist in the address pool during static binding. In addition, to learn the maximum number of entries, you can contact Huawei technical support personnel.

Whether S series switches support IPSG
All S series switches except the following support IPSG: S1700 switches S2700-SI switches W series cards of S7700, S9700, and S1270 switches S9300 of earlier versions than V100R002 For switches that do not support IPSG, you can run the mac-address static vlan command to configure static MAC addresses and run the mac-address learning disable command to disable MAC address learning on interfaces to realize a function similar to IPSG.

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