Multiple VLANs & multiple DHCP in 6509 with FWSM?

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Nov 11th, 2007
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i have 6500 & have about 32 Vlan for voice & data


to each vlan there are DHCP pool & it knows the range from interface vlan & each vlan have its default router


NOW i need to add FWSM to protect the data so i need to remove Interface Vlans from the switch to FWSM


so i wonder how the DHCP pool will know the respective VLAN


is there are any configuration or it will know it from FWSM or it won't be recommended to use DHCP server on switch in this case


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Jon Marshall Mon, 11/12/2007 - 00:26
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Hi


If i understand correctly you need the FWSM to forward on DHCP requests from clients attached to it's interfaces.


If i have understood you can do this as the FWSM has a DHCP relay feature although there are a number of caveats to it's use. Attached is a link to a doc with details on this feature


http://www.cisco.com/en/US/docs/security/fwsm/fwsm31/configuration/guide/ip_f.html#wp1107195


Hope i have understood


Jon

MIMOMHAZ333 Mon, 11/12/2007 - 00:51
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HI jon


thank you a lot


u understood the problem good & u help me to be sure from the DHCP relay


& i use the RelayServer as the MSFC interface VLAN


thank you alot

Mohamed Zamzam

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