Satyajeet Seth wrote:
>
> Hi
>
> I have configured pseudo ethernet interfaces with the following
> requirements:
> 1. There is a ethernet interface fxp0 having MAC address MAC0. It also
> receives packets with destination MAC address MAC1 and MAC2.
> 2. The packets with destination MAC address MAC1 are sent to pseudo
> interface 1, nge0 and packets with destination MAC address MAC2 are sent
> to pseudo interface 2, nge1.
>
> This has been done using netgraph as follows:
> fxp0: <--> bpf <--> bpf <--> interface0
> \ \
> \ ------>interface1
> \
> \------------>interface2
>
> I have used ng_eiface nodes impemented by Vitaly
> (available at http://www.riss-telecom.ru/~vitaly/) for interface1/2. I
What revision of FreeBSD? eiface is now in -current. (but not built by default)
> have set fxp0 in promiscuous mode.
>
> Could you suggest why I am unable to ping the pseudo ethernet interface
> IP addresses from any of the LAN machines?
>
> Is it because fxp0 is capable of sending packets only with its own MAC address and
>not MAC
> addresses of nge0 and nge1?
It's not impossible, but then bridging should fail to work too I would
think. hmm maybe not.. Does another machine see any packets on the wire
at all? If you insert a 'tee' between the bpf and the fxp do you see
outgoing packets?
>
> My ifconfig settings and routing table entries are given below.
>
> pcs130# ifconfig -a
> fxp0: flags=8843<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
> inet 10.0.36.130 netmask 0xfffff000 broadcast 10.0.47.255
> inet6 fe80::2d0:b7ff:febd:711%fxp0 prefixlen 64 scopeid 0x1
> ether 00:d0:b7:bd:07:11
> media: autoselect (100baseTX <full-duplex>) status: active
> supported media: autoselect 100baseTX <full-duplex> 100baseTX 10baseT/UT
> P <full-duplex> 10baseT/UTP
> lp0: flags=8810<POINTOPOINT,SIMPLEX,MULTICAST> mtu 1500
> sl0: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 552
> ppp0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
> inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5
> inet6 ::1 prefixlen 128
> inet 127.0.0.1 netmask 0xff000000
> gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
> gif1: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
> gif2: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
> gif3: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
> faith0: flags=8000<MULTICAST> mtu 1500
> nge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> inet 10.0.137.157 netmask 0xffffffff broadcast 10.0.137.157
> inet6 fe80::211:22ff:fe33:4455%nge0 prefixlen 64 scopeid 0xb
> ether 00:11:22:33:44:55
> nge1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> inet 10.0.198.158 netmask 0xffffffff broadcast 10.0.198.158
> inet6 fe80::2d0:b7ff:febd:711%nge1 prefixlen 64 scopeid 0xc
> ether 11:22:33:44:55:66
> pcs130# netstat -rn
> Routing tables
> Internet:
> Destination Gateway Flags Netif Expire
> default 10.0.32.1 UGSc 0 0 fxp0
> 10.0.32/20 link#1 UC 0 0 fxp0 =>
> 10.0.32.1 link#1 UHLW 1 0 fxp0 =>
> 10.0.36.130 0:d0:b7:bd:7:11 UHLW 0 40 lo0
> 10.0.137.157/32 link#11 UC 0 0 nge0 =>
> 10.0.198.158/32 link#12 UC 0 0 nge1 =>
> 127.0.0.1 127.0.0.1 UH 0 4 lo0
> Internet6:
> Destination Gateway Flags Netif
> Expire
> ::1 ::1 UH lo0
> fe80::%fxp0/64 link#1 UC fxp0
> fe80::%lo0/64 fe80::1%lo0 Uc lo0
> fe80::%nge0/64 link#11 UC nge0
> fe80::%nge1/64 link#12 UC nge1
> ff01::/32 ::1 U lo0
> ff02::%fxp0/32 link#1 UC fxp0
> ff02::%lo0/32 fe80::1%lo0 UC lo0
> ff02::%nge0/32 link#11 UC nge0
> ff02::%nge1/32 link#12 UC nge1
>
> Thanks
> Satya
>
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