Date: Wed, 30 Nov 2005 15:12:07 -0500 From: "Brian J. McGovern" <mcgovern@beta.com> To: questions@freebsd.org Subject: Setting up VLAN interfaces with Cisco gear... getting traffic on broadcast only... Message-ID: <200511302012.jAUKC7wA012920@spoon.beta.com>
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All, I've got three Catalyst 6500s configured in a switching domain via fiber, with one "hub" 6500 connecting two remotes. Their port configurations are basically (the actual port number varies based on the device). interface Gigabit Ethernet 9/2 no ip address switchport switchport trunk encapsulation dot1q switchport mode trunk The switches have been working as-is for over a year now, so I know that part of the configuration is good. I've been asked to provide some Sun jumpstart services, and want to use an IBM x335 with a bge interface to act as a bootparams/tftp/rarp server, and figured that trunking it in to the main switch and bringing up vlans for the individual subnets that would be served would be the right way to go, so I configured up one of the gig-E interfaces, as above, with the only change selecting the UTP media. On the FreeBSD (6.0) side, I then ran: ifconfig bge0 up media 1000baseTX mediaopt full-duplex ifconfig vlan0 create vlan 1 vlandev bge0 ifconfig vlan0 10.86.154.221 netmask 255.255.255.240 The other devices on the subnet are 10.86.154.209 ("Hub 6500"), 10.86.154.210 ("Remote 6500 1"), 10.86.154.211 ("Remote 6500 2"), and 10.86.154.222 ("Another x335 server running Linux"). However, I don't seem to be able to get normal traffic through the link. If I ping 10.86.154.223 (the subnet broadcast), I see responses from all of the above devices - the first looking normal, and the remainder showing (DUP!), which I would expect. Pinging a device directly causes packets to get lost. They show up in the outbound stats, and the 6500(s) appear(s) to see and respond to it, but it never comes back in via the vlan0 interface. Any suggestions to try before I bang my head against the wall? -Brian
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