Netbooting from the Apollo emulator

[supervinx]

I built the mess0146 based emulator, changed my scripts, and the earlier
installations booted up nicely.

Now I've some doubt left.

make -n net and make net

create a new virtual interface tap-mess--0

/sbin/ifconfig tap-mess--0 192.168.2.99 up
/sbin/route del -net 192.168.2.0 netmask 255.255.255.0 dev tap-mess--0
/bin/sh -c "echo 1 > /proc/sys/net/ipv4/conf/tap-mess--0/proxy_arp"
# dn3500
/sbin/route add -host 192.168.2.30 dev tap-mess--0
/sbin/arp -Ds 192.168.2.30 tap-mess--0 pub

Externally (from the Linux host) I should see 192.168.2.99.

Must I set the Apollo node to 192.168.2.30 ip address or change the Makefile ?
To which address must I set the gateway into DomainOS ?
From the internal net (192.168.1.0) how it's seen the Apollo node ? Which IP ?

If I don't set at all tunctl, and set the node IP to an address internal to my
network (say 192.168.1.0, Linux host 1.10, Apollo 1.4) can I connect to every IP
(except the host) in my net ?

The main purpose is to use the Emulator to netboot diskless nodes, using addresses
falling in my net address space (192.168.1.0)


--
http://www.supervinx.com/Retrocomputer

[Hans Ostermeyer]

On 07/03/12 15:03, supervinx wrote:
>
> I built the mess0146 based emulator, changed my scripts, and the earlier
> installations booted up nicely.
>
> Now I've some doubt left.
>
> make -n net and make net
>
> create a new virtual interface tap-mess--0
>
> /sbin/ifconfig tap-mess--0 192.168.2.99 up
> /sbin/route del -net 192.168.2.0 netmask 255.255.255.0 dev tap-mess--0
> /bin/sh -c "echo 1> /proc/sys/net/ipv4/conf/tap-mess--0/proxy_arp"
> # dn3500
> /sbin/route add -host 192.168.2.30 dev tap-mess--0
> /sbin/arp -Ds 192.168.2.30 tap-mess--0 pub
>
> Externally (from the Linux host) I should see 192.168.2.99.
>
> Must I set the Apollo node to 192.168.2.30 ip address or change the Makefile ?
> To which address must I set the gateway into DomainOS ?
> From the internal net (192.168.1.0) how it's seen the Apollo node ? Which IP ?
>
> If I don't set at all tunctl, and set the node IP to an address internal to my
> network (say 192.168.1.0, Linux host 1.10, Apollo 1.4) can I connect to every IP
> (except the host) in my net ?

In your shell the environment variable UID seems to be undefined (in
openSUSE 12.1 /usr/bin/sh is a link to /bin/bash and UID is my user id).

To bypass the problem run make with UID set to your user id, e.g. 1234

$ make -n net UID=1234

This will select tap-mess-1234-0 as tap device and your problems should
be solved.

>
> The main purpose is to use the Emulator to netboot diskless nodes, using addresses
> falling in my net address space (192.168.1.0)

Bad news: I just tried this myself and found that booting a 425t from
the emulation with Domain/OS 10.4.1.2 will fail (with crash_status
80110007 - remote node failed to respond to request). And this is
probably true for SR10.3 or SR10.4 as well.

Diskless booting SR10.2 from the emulation worked long time ago; but I
have not yet verified this with MESS 0.146.

--
Hans Ostermeyer