I think that lots of equipment doesnt like you mixing tagged and untagged traffic on the same network. If you have to it might help setting the Mac addresses on the two interfaces to be different. On 24 May 2005, at 11:32, Normando Marcolongo wrote: > Hi! > > Let me explain the simple architecture here. A linux machine with > kernel 2.6.11.7 (Debian Sarge) and e1000 driver. A Cisco Catalyst > 6509 configured with a trunk port this way: > > interface GigabitEthernet4/13 > switchport > switchport trunk native vlan 100 > switchport trunk allowed vlan 100,201 > switchport mode trunk > > The linux machine has: > > # cat /proc/net/vlan/config > VLAN Dev name | VLAN ID > Name-Type: VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD > eth0.201 | 201 | eth0 > > # ifconfig > eth0 Link encap:Ethernet HWaddr 00:0B:DB:A9:0F:D1 > inet addr:172.19.1.11 Bcast:172.19.1.255 Mask: > 255.255.255.0 > inet6 addr: fe80::20b:dbff:fea9:fd1/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:49984 errors:0 dropped:0 overruns:0 frame:0 > TX packets:80330 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:4335305 (4.1 MiB) TX bytes:110105417 (105.0 MiB) > Base address:0xece0 Memory:fe8e0000-fe900000 > > eth0.201 Link encap:Ethernet HWaddr 00:0B:DB:A9:0F:D1 > inet addr:172.22.1.2 Bcast:172.22.1.255 Mask:255.255.255.0 > inet6 addr: fe80::20b:dbff:fea9:fd1/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:255 errors:0 dropped:0 overruns:0 frame:0 > TX packets:361 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:22471 (21.9 KiB) TX bytes:21547 (21.0 KiB) > > If I put a test client on the VLAN100 the linux machine can ping > the 6509's VLAN100 interface and the test client. > Now, I can ping from the linux machine the VLAN201 interface of the > 6509 and (obviuosly) vice versa. > If I put a test client on the VLAN201 the test client _cannot_ > resolve the MAC address of the linux machine while the linux > machine has this resolved. If I do a tcpdump on the linux machine I > see: > on the eth0.201 the ARP request from the client _and_ the reply > from the linux machine to the client (this will never reach the > client for an unknown reason) > on the eth0 the same (I think I've understood that this is normal) > putting static ARPs on the server/client solves the problem. > Can you give me some directions? Need some other information? > > Thanks, > Normando > -- Normando Marcolongo | Micso s.r.l. via Tiburtina, 318 | I-65128 > Pescara, Italy tel/fax (+39)08554105 | mob. (+39)3386296362 > <normando.vcf> > _______________________________________________ > Vlan mailing list > Vlan@xxxxxxxxxxxxxxx > http://www.lanforge.com/mailman/listinfo/vlan >
