Thanks for your replies. PWLA8391GT is a vlan-aware card and eth0 is up. I'll test with time delay and see if it solves the problem. Actually box B which seems to have no problem(transmitting and receiving) has a 533 MHz Via Eden CPU while box A has a Amd Athlon 64 X2 3800+ CPU. Box A should definitely execute its initscript much faster than box B. I tried to introduce a sleep statement just after 'vconfig set_name_type VLAN_PLUS_VID_NO_PAD' on box A and B. Same problem. Also tried to add 'sleep 1' on a line below every statement. No go. Cant find anything strange in dmesg either. More ideas? Best Regards Andreas Andreas S?bstad wrote: > Hi, > I'm trying to implement the following very basic topology: > > > box A: box B: > _______ eth0 eth0 _______ > | |_ _ _trunk _ _ _| | > |______| |_______| > > Both ethernetcards are 'PWLA8391GT (intel pro/1000 gt desktop > adapter)'. The 'e1000' driver is used on both computers. > The trunk is a crossover-cable connecting the two nics directly. > > Box A is runing debian etch(2.6.16-2-amd64-k8-smp) and has been > configured with the following configuration: > > ip link set up dev eth0 > modprobe 8021q > vconfig set_name_type VLAN_PLUS_VID_NO_PAD > > vconfig add eth0 2 > ip addr add dev vlan2 10.10.2.2/24 broadcast 10.10.2.255 > ip link set dev vlan2 up > > vconfig add eth0 3 > ip addr add dev vlan3 10.10.3.2/24 broadcast 10.10.3.255 > ip link set dev vlan3 up > > vconfig add eth0 4 > ip addr add dev vlan4 10.10.4.2/24 broadcast 10.10.4.255 > ip link set dev vlan4 up > > ip route add default via 10.10.2.1 > > Box B is running debian sarge(2.6.15-1-686) and has been configured > with the following configuration: > > ip link set up dev eth0 > modprobe 8021q > vconfig set_name_type VLAN_PLUS_VID_NO_PAD > > vconfig add eth0 2 > ip addr add dev vlan2 10.10.2.1/24 broadcast 10.10.2.255 > ip link set dev vlan2 up > > vconfig add eth0 3 > ip addr add dev vlan3 10.10.3.1/24 broadcast 10.10.3.255 > ip link set dev vlan3 up > > vconfig add eth0 4 > ip addr add dev vlan4 10.10.4.1/24 broadcast 10.10.4.255 > ip link set dev vlan4 up > > > If I test the nics without vlan they work perfectly. If I use them > with the above mentioned conf then eth0 on box a won't recive anything > while eth0 on box b is able to both transmitt and recive. > > > I did the following test: > > on box a: > > PING 10.10.2.1 (10.10.2.1) 56(84) bytes of data. > From 10.10.2.2 icmp_seq=1 Destination Host Unreachable > From 10.10.2.2 icmp_seq=2 Destination Host Unreachable > From 10.10.2.2 icmp_seq=3 Destination Host Unreachable > > tcpdump: WARNING: eth0: no IPv4 address assigned > tcpdump: verbose output suppressed, use -v or -vv for full protocol > decode > listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes > 22:47:43.081271 arp who-has 10.10.2.1 tell 10.10.2.2 > 22:47:44.080780 arp who-has 10.10.2.1 tell 10.10.2.2 > 22:47:46.079810 arp who-has 10.10.2.1 tell 10.10.2.2 > 22:47:47.079327 arp who-has 10.10.2.1 tell 10.10.2.2 > 22:47:48.078966 arp who-has 10.10.2.1 tell 10.10.2.2 > > tcpdump: verbose output suppressed, use -v or -vv for full protocol > decode > listening on vlan2, link-type EN10MB (Ethernet), capture size 96 bytes > 22:48:34.087678 arp who-has 10.10.2.1 tell 10.10.2.2 > 22:48:35.087691 arp who-has 10.10.2.1 tell 10.10.2.2 > 22:48:36.087707 arp who-has 10.10.2.1 tell 10.10.2.2 > 22:48:38.087740 arp who-has 10.10.2.1 tell 10.10.2.2 > > on box b: > > tcpdump: WARNING: eth0: no IPv4 address assigned > tcpdump: verbose output suppressed, use -v or -vv for full protocol > decode > listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes > 23:50:40.507796 arp reply 10.10.2.1 is-at 00:0e:0c:b3:9f:d6 > 23:50:41.507648 arp reply 10.10.2.1 is-at 00:0e:0c:b3:9f:d6 > 23:50:43.507542 arp reply 10.10.2.1 is-at 00:0e:0c:b3:9f:d6 > 23:50:44.507419 arp reply 10.10.2.1 is-at 00:0e:0c:b3:9f:d6 > > tcpdump: verbose output suppressed, use -v or -vv for full protocol > decode > listening on vlan2, link-type EN10MB (Ethernet), capture size 96 bytes > 22:52:11.076059 arp who-has 10.10.2.1 tell 10.10.2.2 > 22:52:12.076072 arp who-has 10.10.2.1 tell 10.10.2.2 > 22:52:14.076104 arp who-has 10.10.2.1 tell 10.10.2.2 > > If I do a 'cat /proc/net/dev' on box b I can see that data is being > recived and transmitted on eth0 and vlan2 . > If I do a ' cat /proc/net/dev' on box a I can only see data being > transmitted on eth0 and eth2. There is no reciveing and no dropping of > packages on the same interfaces. I have tested with another > crossover-cable: same result. I have tried also to assign static > macaddr in the arp table on both computers but eth0 on box a still > wont recive anything. > > > Anybody got any ideas on what I am doing wrong? > > > > Best Regards > > Andreas > _______________________________________________ > Vlan mailing list > Vlan@xxxxxxxxxxxxxxx > http://www.candelatech.com/mailman/listinfo/vlan
