Re: Ip Aliasing the Debian Way...
Nathan E Norman wrote:
>
> On Wed, Jan 24, 2001 at 03:24:16PM -0800, Willy Lee wrote:
> > Hm. This doesn't work for me (latest potato i386). Here's the stanza I
*snip*
> Well. Several things:
>
> 1) There's no point in tracking RX or TX packets for a virtual
> interface (think about the word virtual for a while ...)
Ok, but the output of ifconfig in the IP-aliasing mini-HOWTO *does*
have those lines, which confused me.
> 2) You're missing the "network" line from your iface stanza. Since it
> looks to me like you're adding a different subnet this is kinda
> important.
Ok, I thought (from man interfaces) that the "network" line was only
needed
for 2.0.x series kernels, I can add this.
> 3) It doesn't look like you added any routes. This might not be
> necessary depending which kernel you're using.
I tried several combinations of route commands. This is the latest one
I tried:
route add -host 205.178.55.110 dev eth0:0
I also tried 'route add -net 205.178.55.0 netmask 255.255.255.192 dev
eth0:0'.
> > I recompiled the kernel to turn on IP_ALIAS support. Is there another
> > feature I need to turn on, that I perhaps missed? Is the feature
> > limited to certain hardware? Is it limited to certain subnet masks?
>
> Fixd #2. Post the output of "netstat -rn". Consider whether you're
> helping us solve your problem by blocking out the IPs.
Ok. I thought blocking out the IPs was kinda traditional :) Perhaps
more
people pinging the machine would help.
New stanza in /etc/network/interfaces:
iface eth0:0 inet static
address 205.178.55.110
netmask 255.255.255.192
gateway 205.178.55.65
broadcast 205.178.55.255
network 205.178.55.0
This is right after doing a /etc/init.d/networking restart, before any
route
commands.
trs80:/etc/network# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
205.178.55.64 0.0.0.0 255.255.255.192 U 0 0 0
eth0
10.0.0.0 0.0.0.0 255.255.255.0 U 0 0 0
eth0
0.0.0.0 205.178.55.65 0.0.0.0 UG 0 0 0
eth0
0.0.0.0 10.0.0.41 0.0.0.0 UG 0 0 0
eth0
trs80:/etc/network# ifconfig
eth0 Link encap:Ethernet HWaddr 00:10:5A:9C:8B:BF
inet addr:10.0.0.102 Bcast:10.255.255.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5656 errors:0 dropped:0 overruns:0 frame:0
TX packets:2998 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
Interrupt:11 Base address:0xd000
eth0:0 Link encap:Ethernet HWaddr 00:10:5A:9C:8B:BF
inet addr:205.178.55.110 Bcast:205.178.55.255
Mask:255.255.255.192
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:11 Base address:0xd000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:27 errors:0 dropped:0 overruns:0 frame:0
TX packets:27 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
Thanks for all the help.
I am kinda struggling here, since I've been forced into a sysadmin role
without
any experience or training (company can't afford a real sysadmin, I'm
the only
person with *any* kind of linux experience, since I run debian at home.)
=wl
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