[SLE] Routing issues with eth1(internal) & eth2(external)

From: Mark A. Taff (marktaff_at_comcast.net)
Date: 05/18/05

  • Next message: Mark A. Taff: "Re: [SLE] HP Pavillion ZV5000 (AMD64)" 
    To: suse-linux-e@suse.com
Date: Tue, 17 May 2005 22:23:54 -0700

    All,
            I sure hope someone can enlighten me.  I am having a weird routing
    issue.  
    Everything works OK, except I can't access the the external interface from a
    machine on my internal network.

    See network map pdf at http://www.marktaff.com/network.map.pdf
    See output of `ifconfig` and `route` below.

    From any internal (192.168...) machine, I can't ping/ssh liberty1-ext, but I
    can ping/ssh to liberty1-int.

    From each internal machine, I can reach all the other internal machines, and
    the router's external ip, but not liberty1's external ip.

    From outside my private network, I can ping/ssh liberty1-ext just fine.

    I want to be able to access the machine via liberty1-ext both at home and
    while traveling, yet still be able to access the private network from
    liberty1 via liberty1-int interface.

    Could the problem be my hub?  Do I need to replace it with a switch, or
    perhaps a separate router?  Seems like the hub should work?

    Thanks for all your help.
      

    -- 
Mark A. Taff
+++++++++++++++++++++++++++++++++++++++
liberty1:~ # ifconfig
eth1      Link encap:Ethernet  HWaddr 00:0F:B5:44:34:B3
          inet addr:192.168.0.111  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::20f:b5ff:fe44:34b3/64 Scope:Link
          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:197992 errors:0 dropped:0 overruns:0 frame:0
          TX packets:13195 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:63024816 (60.1 Mb)  TX bytes:2299455 (2.1 Mb)
          Interrupt:11 Base address:0x8000
eth2      Link encap:Ethernet  HWaddr 00:00:C5:B3:6D:63
          inet addr:24.16.122.35  Bcast:255.255.255.255  Mask:255.255.240.0
          inet6 addr: fe80::200:c5ff:feb3:6d63/64 Scope:Link
          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8708383 errors:0 dropped:0 overruns:0 frame:0
          TX packets:48430 errors:0 dropped:0 overruns:0 carrier:0
          collisions:8845 txqueuelen:1000
          RX bytes:1003929910 (957.4 Mb)  TX bytes:6020982 (5.7 Mb)
          Interrupt:10 Base address:0x6000
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:2273 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2273 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:879444 (858.8 Kb)  TX bytes:879444 (858.8 Kb)
++++++++++++++++++++++++++++++++++++++++++++++
liberty1:~ # route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.0.0     *               255.255.255.0   U     0      0        0 eth1
c-24-16-112-0.h *               255.255.240.0   U     0      0        0 eth2
link-local      *               255.255.0.0     U     0      0        0 eth1
loopback        *               255.0.0.0       U     0      0        0 lo
default         c-24-16-112-1.h 0.0.0.0         UG    0      0        0 eth2
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  • Next message: Mark A. Taff: "Re: [SLE] HP Pavillion ZV5000 (AMD64)"