Date: Wed, 29 Sep 1999 01:16:01 -0700 From: "Don O'Neil" <don@whtech.com> To: "Ruslan Ermilov" <ru@ucb.crimea.ua> Cc: <questions@FreeBSD.ORG> Subject: RE: Why can't I ping my own IP Aliases? Message-ID: <MOBBIPGJKBNNPGLGMFHFKEPCDFAA.don@whtech.com> In-Reply-To: <19990929100653.I55586@relay.ucb.crimea.ua>
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Ruslan,
I've added the follwing to my rc.conf:
ifconfig_rl0="inet 209.172.89.24 netmask 255.255.255.0" # WEB01
ifconfig_rl0_alias0="inet 209.172.89.8 netmask 255.255.255.0" # DNS1
ifconfig_rl0_alias1="inet 209.172.89.12 netmask 255.255.255.0" # MAIL
ifconfig_rl0_alias2="inet 209.172.89.40 netmask 255.255.255.0" # WHTECH
ifconfig_rl0_alias3="inet 209.172.89.41 netmask 255.255.255.0" # EITSI
ifconfig_rl0_alias4="inet 209.172.89.9 netmask 255.255.255.0" # DNS2
ifconfig_lo0="inet 127.0.0.1 netmask 255.255.255.0" # WEB01
ifconfig_lo0_alias0="inet 209.172.89.24 netmask 255.255.255.0" # WEB01
ifconfig_lo0_alias1="inet 209.172.89.8 netmask 255.255.255.0" # DNS1
ifconfig_lo0_alias2="inet 209.172.89.12 netmask 255.255.255.0" # MAIL
ifconfig_lo0_alias3="inet 209.172.89.40 netmask 255.255.255.0" # WHTECH
ifconfig_lo0_alias4="inet 209.172.89.41 netmask 255.255.255.0" # EITSI
ifconfig_lo0_alias5="inet 209.172.89.9 netmask 255.255.255.0" # DNS2
Which results in a ifconfig -a listing of:
web01# ifconfig -a
rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 209.172.89.24 netmask 0xffffff00 broadcast 209.172.89.255
inet 209.172.89.8 netmask 0xffffff00 broadcast 209.172.89.255
inet 209.172.89.12 netmask 0xffffff00 broadcast 209.172.89.255
inet 209.172.89.40 netmask 0xffffff00 broadcast 209.172.89.255
inet 209.172.89.41 netmask 0xffffff00 broadcast 209.172.89.255
inet 209.172.89.9 netmask 0xffffff00 broadcast 209.172.89.255
ether 00:00:e8:80:ce:50
media: autoselect
supported media: autoselect 100baseTX <full-duplex> 100baseTX
<half-dupl
ex> 100baseTX 10baseT/UTP <full-duplex> 10baseT/UTP 10baseT/UTP
<half-duplex>
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet 127.0.0.1 netmask 0xffffff00
inet 209.172.89.24 netmask 0xffffff00
inet 209.172.89.8 netmask 0xffffff00
inet 209.172.89.12 netmask 0xffffff00
inet 209.172.89.40 netmask 0xffffff00
inet 209.172.89.41 netmask 0xffffff00
inet 209.172.89.9 netmask 0xffffff00
web01# netstat -rn
Routing tables
Internet:
Destination Gateway Flags Refs Use Netif
Expire
default 209.172.89.1 UGSc 10 36 rl0
127.0.0.1 127.0.0.1 UH 1 227 lo0
209.172.89 link#1 UC 0 0 rl0
209.172.89.1 0:60:83:7c:a3:bb UHLW 11 0 rl0 993
209.172.89.8 209.172.89.8 UH 0 17 lo0
209.172.89.9 209.172.89.9 UH 0 0 lo0
209.172.89.12 209.172.89.12 UH 0 0 lo0
209.172.89.24 209.172.89.24 UH 2 1152 lo0
209.172.89.40 209.172.89.40 UH 0 4 lo0
209.172.89.41 209.172.89.41 UH 0 0 lo0
I'm not explicitly activating ipfirewall.. so unless it automatically gets
setup and activated it shouldn't be in the way. It's disabled in the
/etc/defaults/rc.conf file.
2.2.8 (the other machine I'm running) didn't need the explicit lo0 aliases
to work.... Having the aliases on this machine seems to solve the problem.
Maybe it's a band-aid for now, but it works. Any ideas on how it's supposed
tobe done correctly?
> -----Original Message-----
> From: Ruslan Ermilov [mailto:ru@ucb.crimea.ua]
> Sent: Wednesday, September 29, 1999 12:07 AM
> To: Don O'Neil
> Cc: questions@FreeBSD.ORG
> Subject: Re: Why can't I ping my own IP Aliases?
>
>
> On Tue, Sep 28, 1999 at 06:31:19PM -0700, Don O'Neil wrote:
> > I've configured a few IP aliases on my 3.3 machine, and they
> show up under
> > ifconfig -a... but when I try to ping them from the machine
> they're defined
> > on I can't... nor can I telnet or ftp to them. I can
> ping/telnet/ftp to them
> > from outside the machine, so I know the traffic is getting routed
> > correctly... what gives?
> >
> > I'm using RealTek 10/100 PCI ethernet cards, FBSD 3.3-Release.
> >
> > Thanks!
> > Don
>
> Show us the output of `ifconfig -a' and `netstat -rn' commands,
> and tell us what address is not pingable for you.
>
> Also, are you running ipfirewall(4)? If so, what its rules are?
>
> --
> Ruslan Ermilov Sysadmin and DBA of the
> ru@ucb.crimea.ua United Commercial Bank,
> ru@FreeBSD.org FreeBSD committer,
> +380.652.247.647 Simferopol, Ukraine
>
> http://www.FreeBSD.org The Power To Serve
> http://www.oracle.com Enabling The Information Age
>
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