Ciao questo è il mio primo post su questo forum.
Scusa per la mia mancanza di comprensione della rete
Nel distacco, ma per imparare.
Ho un problema raggiungere il gateway predefinito 10.18.110.1

Se utilizzare il mio computer portatile posso ping 10.18.110.1, ma con i nostri server di Red Hat multihomed il gateway non risponde al ping.
cat / etc / redhat-release
Red Hat Enterprise Linux ES release 3 (Taroon Aggiornamento 6)

Quindi penso II è un problema di routing, ma non posso dire se il sottostante è corretta o meno.

root @ telfrm network-scripts] # netstat-rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt iface
172.21.65.0 0.0.0.0 255.255.255.128 U 0 0 0 eth1
172.21.2.0 0.0.0.0 255.255.255.128 U 0 0 0 eth0
10.18.110.0 0.0.0.0 255.255.255.0 U 0 0 0 eth2
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth2
0.0.0.0 10.18.110.1 0.0.0.0 UG 0 0 0 eth2

Il mio interfacce.
eth0 Link encap: Ethernet HWaddr 00:21:5 A: EE: A9: E6
inet addr: 172.21.2.44 Bcast: 172.21.2.127 Mask: 255.255.255.128
UP BROADCAST RUNNING MULTICAST MTU: 1500 Metric: 1
RX packets: 2975 errors: 0 dropped: 0 overruns: 0 frame: 0
TX packets: 4 errors: 0 dropped: 0 overruns: 0 carrier: 0
collisions: 0 txqueuelen: 1000
RX bytes: 190400 (185,9 Kb) TX bytes: 256 (256,0 b)
Interrupt: 16 Memory: f8000000-f8011100

eth1 Link encap: Ethernet HWaddr 00:21:5 A: EE: A9: E4
inet addr: 172.21.65.25 Bcast: 172.21.65.127 Mask: 255.255.255.128
UP BROADCAST RUNNING MULTICAST MTU: 1500 Metric: 1
RX packets: 950 errors: 0 dropped: 0 overruns: 0 frame: 0
TX packets: 598 errors: 0 dropped: 0 overruns: 0 carrier: 0
collisions: 0 txqueuelen: 1000
RX bytes: 85568 (83,5 Kb) TX bytes: 109903 (107,3 Kb)
Interrupt: 17 Memoria: fa000000-fa011100

eth2 Link encap: Ethernet HWaddr 0:01 F: 29:5 D: B9: 89
inet addr: 10.18.110.23 Bcast: 10.18.110.255 Mask: 255.255.255.0
UP BROADCAST MULTICAST MTU: 1500 Metric: 1
RX packets: 0 errors: 0 dropped: 0 overruns: 0 frame: 0
TX packets: 0 errors: 0 dropped: 0 overruns: 0 carrier: 0
collisions: 0 txqueuelen: 1000
RX bytes: 0 (0.0 b) TX bytes: 0 (0.0 b)
Base address: 0x5000 Memory: fdde0000-fde00000

eth3 Link encap: Ethernet HWaddr 0:01 F: 29:5 D: B9: 88
BROADCAST MULTICAST MTU: 1500 Metric: 1
RX packets: 0 errors: 0 dropped: 0 overruns: 0 frame: 0
TX packets: 0 errors: 0 dropped: 0 overruns: 0 carrier: 0
collisions: 0 txqueuelen: 1000
RX bytes: 0 (0.0 b) TX bytes: 0 (0.0 b)
Base address: 0x5020 Memory: fdce0000-fdd00000

eth4 Link encap: Ethernet HWaddr 0:01 F: 29:5 D: B9: 8B
BROADCAST MULTICAST MTU: 1500 Metric: 1
RX packets: 0 errors: 0 dropped: 0 overruns: 0 frame: 0
TX packets: 0 errors: 0 dropped: 0 overruns: 0 carrier: 0
collisions: 0 txqueuelen: 1000
RX bytes: 0 (0.0 b) TX bytes: 0 (0.0 b)
Base address: 0x6000 Memory: fdfe0000-fe000000

eth5 Link encap: Ethernet HWaddr 0:01 F: 29:5 D: B9: 8A
BROADCAST MULTICAST MTU: 1500 Metric: 1
RX packets: 0 errors: 0 dropped: 0 overruns: 0 frame: 0
TX packets: 0 errors: 0 dropped: 0 overruns: 0 carrier: 0
collisions: 0 txqueuelen: 1000
RX bytes: 0 (0.0 b) TX bytes: 0 (0.0 b)
Base address: 0x6020 Memory: fdee0000-fdf00000

lo Link encap: Local Loopback
inet addr: 127.0.0.1 Mask: 255.0.0.0
UP Loopback RUNNING MTU: 16436 Metric: 1
RX packets: 385325 errors: 0 dropped: 0 overruns: 0 frame: 0
TX packets: 385325 errors: 0 dropped: 0 overruns: 0 carrier: 0
collisions: 0 txqueuelen: 0
RX bytes: 41960958 (40,0 Mb) TX bytes: 41960958 (40,0 Mb)

perché eth3, 4 e 5 mostrano up, I dont hanno alcun file ifcfg-ethx per loro.

[root @ telfrm network-scripts] # more / etc / hosts
127.0.0.1 localhost.localdomain localhost
10.18.110.23 telfrm.mycomp.es telfrm

più / etc / sysconfig / network
NETWORKING \u003d yes
HOSTNAME \u003d telfrm
\u003d NomeDominio mycomp.es
GATEWAY \u003d 10.18.110.1


Ho avuto un amico con un look e ha thougt la tabella di routing è stato okey.

Eventuali suggerimenti sono i benvenuti.
Saluti
Gennaio