Commit c8dd525a authored by Mike Hibler's avatar Mike Hibler
Browse files

add item for clearing sticky ARP entries

parent 11c5f8e1
......@@ -95,8 +95,8 @@ ID Name Members of VLAN
2. Checking on the firewall rules
You have to login to the "control" Cisco, enable and then
"session 15" to connect to the Router module.
You have to login to the "control" Cisco and then "session 15" to
connect to the Router module.
While at the Router> prompt, you will get any "access denied" type
messages that the router produces, ala:
......@@ -110,17 +110,36 @@ ID Name Members of VLAN
To see the whole lists in all their ugliness, type:
show ip access-lists
The rules are pretty straightforward. First match wins. Netmasks are bass-ackwards
(intead of 255.255.255.0, you would use 0.0.0.255). Each list is applied both
on entrance and exit to the like-named control network VLAN.
The rules are pretty straightforward. First match wins. Netmasks are
bass-ackwards (intead of 255.255.255.0, you would use 0.0.0.255).
Each list is applied both on entrance and exit to the like-named control
network VLAN.
3. Changing the firewall rules
ROB: Working on this part
4. Finding MAC address information
To find which port a given MAC address is on type (on the switch console):
show cam <MAC> (where MAC is colon-separated, like 08:00:2b:81:62:d3
To show all MAC addresses in a given VLAN, type:
show cam dynamic <VLAN> (where VLAN is the number, not the name)
To find which port a given MAC address is on type (on the switch console):
show cam <MAC>
where MAC is colon-seperated, like 08:00:2b:81:62:d3.
To show all MAC addresses in a given VLAN, type:
show cam dynamic <VLAN>
where VLAN is the number, not the name.
5. Deleting a "sticky" ARP entry
If you should ever be so unfortunate as to have to replace a faulty
shark, in addition to recording the new MAC address in the DB and DHCP
config file, you may also need to clear it from the router module.
If you fire up a new shark, and it says that it cannot get its DHCP info,
this is likely the problem. To find out, login to the control Cisco and
"session 15" to get to the router module. You should start seeing periodic
24w2d: %IP-3-STCKYARPOVR: Attempt to overwrite Sticky ARP entry: \
155.101.130.73, hw: 0800.2b81.62d3 by hw: 0800.2b81.611b
messages. To clear the arp entry (actually the whole cache), enable at
the Router> prompt and then do "clear arp".
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