I am setting up a wireless bridge and Access point to trunk 2 vlans - One is Vlan 11 ( Voice ), and One is default Vlan 1. Here is the issue.
If on vlan 11, (by associated SSID mapped to vlan 11)wireless client (ip phone) gets a ip assigned by dhcp no problem in vlan 11. (dhcp server for the voice vlan subnet sits across the WAN, and AP pipes in through a dot1q trunk port into a 3524 that has a "switchport access vlan 11" port piped directly to a 3660 router that only runs the vlan 11 Subnet (10.46.3.0/24). The data vlan 1, and voice vlan 11 ( voice ) were, before this wireless addition 2 flat networks with no intervlan routing, and no trunking involved anywhere in the network. All people in the data vlan 1, pipe into regular switch ports with uplink to a cat 6006, connected to a 3640 that only has main interface routing the vlan 1 layer 3 subnet across the WAN. The dhcp server for data vlan 1 sits on vlan 1 locally(10.44.185.0/21) Issue at hand - If I put my laptop on Vlan 1 using wireless (by associated SSID)and give myself a static ip, I have full connectivity on VLAN 1. (trunking is fine, and both vlans flow through the switch fabric). If I set my laptop to DHCP on SSID VLAN 1, DHCP does not work? Protocol analyzer produces nothing but shows me issuing bootpc requests with no responses. If I pipe directly into the 3524 switch (using switchport access vlan 1) that the Access Point trunks directly into, and use DHCP, I pick up an ip right away, so I have pinned it down to a issue with BOOTPC broadcast going across the Proper broadcast domain (vlan1) when connecting wireless? I think the issue, is because the access point has first associated with the DHCP server reachable Via vlan 11, which existed prior to adding data vlan to the picture of the wireless setup (through helper address on vlan 11's subnet's router), and read that the Cisco 350 access point's do associate with the last DHCP server they contacted, so I increased the timeout on the AP to search for multiple DHCP servers, but to no avail? I realize this is a weird setup, and I did not design, and am only there to make the 2 vlans work and utilize dhcp functionality either from a IP phone, or A pc on the data VLAN using wireless( BY associated SSID ) All criteria has been met, minus DHCP functionality from VLAN 1 ? Has anyone run into this, or something similar? Is there an issue when trunking vlans using wireless using multiple DHCP servers on different VLANS? Any comments or help would be appreciated Note- The customer does not want to intervlan route,and use a single DHCP server with multiple scopes? I discussed this possibility. Thanks! Brett Michael Spunt CCNP,CIPT,MCSE Computer Network Innovations [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=62628&t=62628 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
