7. Ry8mizontas to Linux mhxanhma san ena IPX dromologhth (router).

An exete ena ari8mo apo IPX tmhmata (segments) ta opoia epi8ymeite na diasyndesete mesw diktuoy xreiazeste tis yphresies enos dromologhth. Se periballon Novell yparxoyn dyo plhrofories poy einai aparaithtes na diado8oun sto diktyo. Einai oi plhrofories dromologhshs diktuoy poy diadidontai xrhsimopoiwntas to Novell RIP kai oi plhrofories diafhmishs yphresiwn (service advertisement information) poy diadidontai xrhsimopoiwntas to Novell SAP. Opoiosdhpote dromologhths prepei na yposthrizei kai ta duo ayta prwtokolla ta opoia einai xrhsima stis perissoteres periptwseis.

To Linux yposthrizei kai ta duo ayta prwtokolla kai mporei eukola na leitoyrghsei san enas dromologhths plhrws symbatos me Novell.

H yposthrijh IPX toy pyrhna toy Linux diaxeirizetai to IPX paketo prow8wntas to dia mesoy twn interfaces, alla ayto to kanei sumfwna me toys kwdikopoihmenoys kanones ston IPX pinaka dromologhsewn. To Linux xreiazetai ena programma gia na ylopoihsei to Novell RIP kai SAP, gia na sigoyrecei oti o IPX pinakas dromologhsewn einai domhmenos swsta kai enhmerwnetai periodika wste na antanakla tis allages sthn katastash diktuoy.

O Volker Lendecke <lendecke@namu01.gwdg.de> exei anaptujei ena daimona dromologhshs poy 8a to kanei gia sas.

8a breite to ipxripd sto:

sunsite.unc.edu

h sth selida twn Volkers sto:

ftp.gwdg.de

H ru8mish toy Linux mhxanhmatos sas wste na symperiferetai sa dromologhths einai profanhs. Ta bhmata poy prepei na kanete einai ta ejhs:

1. Xtiste ton pyrhna sas me yposthrijh IPX, Ethernet kai /proc .
2. Parte, metaglwttiste kai egkatasthste to ipxd daimona.
3. 3ekinhste me to neo pyrhna kai bebaiw8eite oti ka8e mia apo tis kartes Ethernet exei anagnwris8ei swsta kai den yparxoyn hardware sygkrouseis (conflicts).
4. Energopoihste to prwtokollo IPX se ka8e ena apo ta interfaces xrhsimopoiwntas thn entolh ipx_interface poy perigrafthke parapanw.
5. 3ekinhste to ipxd daimona.

As 8ewrhsoyme to akoloy8o aplo diktyo:

 IPX Diey8: 0x01000000  802.2
|----------------------------|
              |
              \_________________________
                                        \       Linux Dromologhths
 IPX Diey8: 0x02000000  802.2            \
|----------------------------|            \   eth0/-----------\
              |                            \--====|           |
              \_________________________          | IPX route |
                                        \     eth1|  Table    |
 IIPX Diey8: 0x03000000  etherII         \----====|    ^      |
|-------------------------------|                 |    |      |
              |                               eth2|  IPXd     |
              \______________________________/====|           |
                                                  |  SAPd     |
 IPX Diey8: 0x04000000  etherII               eth3|           |
|------------------------------|             /====|           |
              |                              |    \___________/
              \______________________________/

H ru8mish gia to parapanw diktyo 8a moiazei me :

# ipx_interface add eth0 802.2 0x0100000000
# ipx_interface add eth1 802.2 0x0200000000
# ipx_interface add eth2 etherii 0x0300000000
# ipx_interface add eth3 etherii 0x0400000000
# ipxd

8a prepei na perimenete gia ligo kai na elegjete to arxeio /proc/net/ipx_route kai prepei na to deite na exei employtis8ei me tis dromologhseis toy IPX sxetikes me tis ry8miseis sas kai me opoies alles diadromes ema8e apo alloys dromologhtes sto diktyo.

7.1 Xreiazetai na ry8misw ena eswteriko diktyo;

To Novell exei ena xarakthristiko poy onomazetai eswteriko diktyo, poy to xrhsimopoiei gia na aplopoihsei th dromologhsh se periptwseis opoy o host exei perissoteres apo mia syskeyes diktuoy syndedemenes. Ayto einai xrhsimo sthn periptwsh poy o diakomisths arxeiwn einai syndedemenos me pollapla diktya ka8ws shmainei oti mono mia diadromh xreiazetai na diafhmistei gia na f8asei to diakomisth asxeta apo poio diktyo prospa8eite.

Sth periptwsh ru8mishs opoy den trexete ton diakomisth arxeiwn kai to mhxanhma sas symperiferetai mono sa dromologhths IPX, h erwthsh den einai toso eukolo na apanth8ei. Exei anafer8ei oti h ru8mish gia IPX/PPP leitoyrgei 'kalutera' an ry8misete epishs ena eswteriko diktyo.

Se ka8e periptwsh einai eukolo na ginei, alla isws apaithsei na janaxtistei o pyrhnas sas. 1/4tan doyleuete mesw toy make config toy pyrhna prepei na apanthste y otan erwth8eite Full internal IPX network, opws deixnei parakatw:

  ...
  ...
 Full internal IPX network (CONFIG_IPX_INTERN) [N/y/?] y
  ...
  ...

Gia na ry8mistei to eswteriko interface toy diktuoy, xrhsimopoihste thn entolh ipx_internal_net poy perigrafthke nwritera sto Tmhma Ergaleia gia IPX. Prepei na lhf8ei prosoxh sto na einai monadikh sto diktyo sas h IPX dieu8ynsh toy poy ana8esate kai oti kanena allo mhxanhma h diktyo den th xrhsimopoiei.