[nsp] 2950 & vlans

[Bruce Pinsky]

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joshua sahala wrote:

| hello all,
|
| i have a config issue, but i cannot seem to figure it out.  using this
| toplogy:
|
| router---vlan10---
|   |              |
|   |              |
|   ---vlan12---switch
|        |         |
|      hosta---vlan10
|
| hosta is a server with two ethernet interfaces, one is addressed in the
| inside vlan (vlan10), and the external interface is in vlan12.  the
| switch has an ip address in vlan10 (int vlan10 172.16.24.4).  from the
| router, i can ping/ssh/telnet to anything with an internal address, but
| i cannot ping/ssh the server's public interface.
|

What kind of switch is it?  Does the server have unique MAC addresses for
each of its interfaces or is it a common MAC address across both? If
common, can the switch support the same MAC in two different VLANs?  If
unique, does the router have ARP entries for both of them?  If unique, does
the switch see both in its CAM/forwarding table?

| i am at a loss to figure out why i cannot access the public side...any
| comments or suggestions are welcome.
|
| interface FastEthernet0/3
|  description connected_to_e0.ns1
|  switchport access vlan 12
|  switchport mode access
|  switchport nonegotiate
|  no ip address
|  duplex full
|  speed 100
|  no cdp enable
|  spanning-tree portfast
|  spanning-tree bpdufilter enable
| end
|
| interface FastEthernet0/14
|  description connected_to_e1.ns1
|  switchport access vlan 10
|  switchport mode access
|  switchport nonegotiate
|  no ip address
|  duplex full
|  speed 100
|  no cdp enable
|  spanning-tree portfast
|  spanning-tree bpdufilter enable
|
| interface Vlan10
|  ip address 172.16.24.4 255.255.255.240
|  no ip unreachables
|  no ip proxy-arp
|  no ip route-cache
| end
|
|
| thanks
|
| /joshua
|
|
| "Walk with me through the Universe,
|  And along the way see how all of us are Connected.
|  Feast the eyes of your Soul,
|  On the Love that abounds.
|  In all places at once, seemingly endless,
|  Like your own existence."
|      - Stephen Hawking -
|
|
|
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bep

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