Date: Sun, 11 Mar 2001 16:50:33 -0800 From: Julian Elischer <julian@elischer.org> To: Satyajeet Seth <sseth@sasken.com> Cc: net@freebsd.org, gbnaidu@sasken.com Subject: Re: Ping Problem Message-ID: <3AAC1D58.221D06F2@elischer.org> References: <Pine.GSO.4.30.0103112254140.1273-100000@suns3.sasi.com>
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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 > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message -- __--_|\ Julian Elischer / \ julian@elischer.org ( OZ ) World tour 2000-2001 ---> X_.---._/ v To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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