Good morning all from the very dry Central Coast of California,
So Still struggling with PF on esxi 5.1 and Charter DHCP responses
never being received. Mark I did confirm the cheap SMB switch I have
doesn't support DHCP snooping. Sean I did confirm that CDP was disabled on
the Charter side. I made 3 changes one at a time and I was hoping that one
of them would affect a change, no such luck. Changes in order;
moved from a standard virtual switch (esxi 5.1) to a distributed virtual
switch
changed the interface type in PF to VMXnet2 from e1000
and finally
tried trunking all the way down to the OS creating vlan interfaces on the
PF (not sure why I thought more abstraction from the hardware would be
better)
So all that said I can still see allot of layer 2 activity on the
interface, Gratuitous arps and dhcp requests and offers being bandied about
but I never do see my responses come back. I see them head out never to
return. Anyone else seeing this (with any provider) issue with PF in
software? I'm fairly remote and ATT PPoE is fine for backup but it's
painfully slow for VOIP and every day use. Any suggestions would be
fabulous. Thanks all.
-W
Wade Blackwell
Solutions Architect
(D) 805.457.8825
(C) 805.400.8485
(S) coc.wadeblackwell
On Wed, Oct 30, 2013 at 4:54 PM, Sean Cavanaugh <[email protected]>wrote:
> Make sure to set "no cdp enable" on the port that's going to your cable
> modem. A lot of cable companies will shut down connections that broadcast
> those by default so as not to broadcast the networks together.
>
>
>
> I had same issue with my Comcast connection until I found out about the
> CDP issue.
>
>
>
> -Sean
>
>
>
> *From:* [email protected] [mailto:
> [email protected]] *On Behalf Of *Wade Blackwell
> *Sent:* Saturday, October 26, 2013 4:00 PM
> *To:* [email protected]; [email protected]
> *Subject:* [pfSense] 802.1q dhcp and pf 2.1 and esxi 5.0
>
>
>
> Good afternoon all,
>
> I have *2.1-RELEASE *(amd64) running on esxi 5.0 with a Cisco
> managed L2 switch (SG200-26) in between esxi and the charter cable modem. I
> see my dhcp discovers go out (broadcast) I never see any dhcp traffic come
> back. Charter's been out a few times, they did determine that they see my
> discover and they respond though I don't see the reply. With a dedicated
> interface they can get an address off the modem. ASCII art below;
>
> charter cable modem--g24 cisco vlan 5---esxi vlan5--pf em0.
>
> I've tried this dedicating a vnic to a standalone vswitch with no 802.1q
> and I've tried 802.1q on the esxi side. The cable modem port is always an
> access port in vlan 5. STP has been disabled on the charter modem port.
> Every port has portfast enabled and the mac timers have been cranked down
> to the minimum, 10 seconds I believe. I've captured traffic from vlan 5 and
> g24 (cable modem port) and seen the same thing, dhcp discovers go out,
> nothing comes back. I'm thinking there has to be a handful of folks on this
> list who have dealt with this and succeeded. Any advice would be fabulous,
> I'd like to keep my L3 in software if I can. Thanks so much.
>
> -W
>
>
> --
>
> Wade Blackwell
> Solutions Architect
> (D) 805.457.8825 X998
> (C) 805.400.8485
> (S) coc.wadeblackwell
>
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