Date: Tue, 20 Jan 2009 09:00:25 -0500 From: Steve Bertrand <steve@ibctech.ca> To: "Patrick M. Hausen" <hausen@punkt.de> Cc: freebsd-stable@freebsd.org, Wendell Martins Borges <wendell@ramenzoni.com.br> Subject: Re: aliases not working in em0 Message-ID: <4975D8F9.9000700@ibctech.ca> In-Reply-To: <4975D712.2080101@ibctech.ca> References: <5F259223-D531-4E25-9814-C0C90250707D@ramenzoni.com.br> <20090120134733.GB22114@hugo10.ka.punkt.de> <4975D712.2080101@ibctech.ca>
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Steve Bertrand wrote:
> Patrick M. Hausen wrote:
>> Hello,
>>
>> On Tue, Jan 20, 2009 at 11:12:45AM -0200, Wendell Martins Borges wrote:
>>
>>> ifconfig_em0="inet 192.168.112.1 netmask 255.255.255.0"
>>> ifconfig_em0_alias0="inet 192.168.112.181 netmask 255.255.255.255"
>> I don't know if this can be the cause of your problem, but
>> the /32 netmask for aliases has been deprecated quite a while
>> ago.
>
> For how long? On a 7.0-R box, it works ok with a /32 prefix len:
>
> %ifconfig
> re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
> options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
> ether 00:0f:b5:80:53:85
> inet 208.70.104.210 netmask 0xffffff00 broadcast 255.255.255.192
> inet 208.70.104.211 netmask 0xffffff00 broadcast 255.255.255.255
> inet6 2607:f118::b6 prefixlen 64
> inet6 2607:f118::b7 prefixlen 64
> media: Ethernet autoselect (1000baseTX <full-duplex>)
> status: active
>
> %ping 208.70.104.211
> PING 208.70.104.211 (208.70.104.211): 56 data bytes
> 64 bytes from 208.70.104.211: icmp_seq=0 ttl=64 time=0.079 ms
> ^C
>
> I'll try it on one of my 7.1 boxes to see if I can reproduce the OP's issue.
Interestingly enough, it does work here:
vm# uname -a
FreeBSD ww3.eagle.ca 7.1-RELEASE FreeBSD 7.1-RELEASE #0: Thu Jan 1
14:37:25 UTC 2009
root@logan.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386
vm# ifconfig le0
le0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=8<VLAN_MTU>
ether 00:0c:29:31:e7:11
inet6 fe80::20c:29ff:fe31:e711%le0 prefixlen 64 scopeid 0x1
inet 208.70.104.27 netmask 0xffffff80 broadcast 208.70.104.127
inet 208.70.104.29 netmask 0xffffffff broadcast 208.70.104.29
...and from another box:
pearl# ping 208.70.104.29
PING 208.70.104.29 (208.70.104.29): 56 data bytes
64 bytes from 208.70.104.29: icmp_seq=0 ttl=63 time=1.275 ms
^C
Wendell, what does #netstat -rn say? Also, if you run tcpdump listening
on the alias IP address, do you see the ingress traffic from the remote
workstations? ie:
# tcpdump -n -i em0 host 192.168.112.181
Steve
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