Configuring dhcp snooping to support option 82, Configuration guidelines, Configuration procedure – H3C Technologies H3C S12500 Series Switches User Manual

H3C S9500E Series Switches, H3C MSR 5600, H3C MSR 50, H3C MSR 3600, H3C MSR 30, H3C MSR 2600, H3C MSR 20-2X[40], H3C MSR 20-1X, H3C MSR 930, H3C MSR 900, H3C SecPath F5020, H3C SecPath F5040, H3C VMSG VFW1000