Date: Sun, 11 Mar 2001 23:53:20 +0530 (IST) From: Satyajeet Seth <sseth@sasken.com> To: <net@freebsd.org> Cc: <gbnaidu@sasken.com> Subject: Ping Problem Message-ID: <Pine.GSO.4.30.0103112254140.1273-100000@suns3.sasi.com>
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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
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?
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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