3 karty i route

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3 total messages Started by Jakub Chojnacki Wed, 30 Dec 1998 08:36

#137

Author: Jakub Chojnacki
Date: Wed, 30 Dec 1998 08:36

76 lines
3563 bytes

Zrobilem
eth0 : 212.244.53.216  gw 212.244.53.221 netmask 255.255.255.248
eth1 : 212.244.53.200  gw 212.244.53.201 netmask 255.255.255.248
eth2 : 212.244.53.208  gw 212.244.53.209 netmask 255.255.255.248

route add -net 212.244.53.216 gw 212.244.53.221
route add -net 212.244.53.200 gw 212.244.53.201
route add -net 212.244.53.208 gw 212.244.53.209
route add default gw 212.244.53.193

Na 212.2444.53.221 mam www,poczte (linux)
eth0 jest podpiete do internetu (212.244.53.193)
Linux ping-uje .193
Komputer podpiety np. do eth1 ma adres .206 i widzi .201,  .221  ale nie
widzi .193.
Co jeszcze moze byc zle ?
Juz raz pytalem sie o to na pl.comp.os.linux , ale nadal mam ten sam
problem.
Prosze o pomoc.



ifconfig zwraca :

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Bcast:127.255.255.255  Mask:255.0.0.0
          UP BROADCAST LOOPBACK RUNNING  MTU:3584  Metric:1
          RX packets:58 errors:0 dropped:0 overruns:0
          TX packets:58 errors:0 dropped:0 overruns:0

eth0      Link encap:Ethernet  HWaddr 00:80:AD:A6:99:2E
          inet addr:212.244.53.221  Bcast:212.244.53.223
Mask:255.255.255.248
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:159 errors:0 dropped:0 overruns:0
          TX packets:42 errors:0 dropped:0 overruns:0
          Interrupt:3 Base address:0x300

eth1      Link encap:Ethernet  HWaddr 00:80:AD:C8:66:E7
          inet addr:212.244.53.201  Bcast:212.244.53.207
Mask:255.255.255.248
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:105 errors:0 dropped:0 overruns:0
          TX packets:0 errors:0 dropped:0 overruns:0
          Interrupt:5 Base address:0x320

eth2      Link encap:Ethernet  HWaddr 00:80:AD:82:4F:AF
          inet addr:212.244.53.209  Bcast:212.244.53.215
Mask:255.255.255.248
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:157 errors:0 dropped:0 overruns:0
          TX packets:0 errors:0 dropped:0 overruns:0
          Interrupt:10 Base address:0x340


route zwraca :

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
212.244.53.216  *               255.255.255.248 U     0      0        2 eth0
212.244.53.200  *               255.255.255.248 U     0      0        0 eth1
212.244.53.208  *               255.255.255.248 U     0      0        0 eth2
127.0.0.0       *               255.0.0.0       U     0      0        1 lo
default        212.244.53.193        0.0.0.0         U     0      0        2
eth0

cat /proc/net/ip_forward zwraca

IP firewall forward rules, default 4

cat /proc/sys/net/ipv4/ip_forward
zwraca 1

Jakub Chojnacki
kuba@drescher.pl

Re: 3 karty i route

#138

Author: Andrzej Krzysztofowicz
Date: Wed, 30 Dec 1998 13:28

35 lines
1977 bytes

Jakub Chojnacki <kuba@ns.drescher.pl> wrote:
> Zrobilem
> eth0 : 212.244.53.216  gw 212.244.53.221 netmask 255.255.255.248
> eth1 : 212.244.53.200  gw 212.244.53.201 netmask 255.255.255.248
> eth2 : 212.244.53.208  gw 212.244.53.209 netmask 255.255.255.248

> route add -net 212.244.53.216 gw 212.244.53.221
> route add -net 212.244.53.200 gw 212.244.53.201
> route add -net 212.244.53.208 gw 212.244.53.209
> route add default gw 212.244.53.193

> Na 212.2444.53.221 mam www,poczte (linux)
> eth0 jest podpiete do internetu (212.244.53.193)
> Linux ping-uje .193
> Komputer podpiety np. do eth1 ma adres .206 i widzi .201,  .221  ale nie
> widzi .193.

Czyli kable sprawne, siec dziala. Nie ma albo forwardingu na 201/221
albo poprawnego defaultroute na 206. Co mowi traceroute *.196 puszczony
na *.206 ? Jaki jest *TAM* routing ? Moze *TAM* jest zla maska ?

> Co jeszcze moze byc zle ?
> Juz raz pytalem sie o to na pl.comp.os.linux , ale nadal mam ten sam
> problem.

> cat /proc/sys/net/ipv4/ip_forward
> zwraca 1

Czyli forwarding jest OK.

-- 
=======================================================================
  Andrzej M. Krzysztofowicz               ankry@mif.pg.gda.pl
  tel.  (0-58) 347 14 61
Wydz.Fizyki Technicznej i Matematyki Stosowanej Politechniki Gdanskiej

Re: 3 karty i route

#139

Author: Jakub Chojnacki
Date: Wed, 30 Dec 1998 13:56

6 lines
1078 bytes

Jak robie trace z .206 do .196 to odpowiada .201, .221,  i koniec.
Jak robie trace z .206 do .210 to odpowiada .201, .210 (dlaczego pominal
.209  ??)

Jakub Chojnacki
kuba@drescher.pl

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