System information

Troubleshooting Banyan VINES 13-297
VINES: Clients Cannot Communicate with Servers over Router
Missing vines serverless or
vines arp-enable commands
A network that does not have an attached server must be configured with the
vines serverless broadcast and vines arp-enable router configuration commands.
Note: These commands are enabled by default in Cisco IOS Release 10.3 and later.
Step 1 Use the show running-config privileged exec command on routers
attached to networks with no VINES servers attached. Look for
vines serverless and vines arp-enable router configuration commands
entries.
Step 2 If both the vines serverless and the vines arp-enable commands are not
present, specify the commands for router interfaces in serverless networks.
Syntax:
The following syntax is required to enable vines serverless:
vines serverless [dynamic | broadcast]
Missing vines serverless or
vines arp-enable commands
Syntax Description:
• dynamic (Optional)—Forward broadcasts toward one server only if
there are no servers present on this interface.
• broadcast (Optional)—Always flood broadcasts out all other router
interfaces to reach all servers.
Syntax:
The following syntax is required to enable vines arp-enable:
vines arp-enable [dynamic]
Syntax Description:
• dynamic (Optional)—Responds to ARP
2
and SARP
3
requests on this
interface only if there are no other VINES servers present.
Misconfigured access list Step 1 Use the show vines access-list privileged exec command on routers in the
path from source to destination. This command shows whether there are
access lists configured on the router.
Step 2 Disable all access lists configured on the router using no vines
access-group commands.
Step 3 Test the connection from the client to the server to see whether
connections are now possible. If the connection is successful, an access list
is blocking traffic.
Step 4 To isolate the problem access list, apply one access list statement at a time
until you can no longer create connections.
Step 5 When the problem list is identified, alter it so that necessary traffic is
allowed to pass. On a serverless segment, make sure that well-known
ports 0x06 (VINES file service) and 0x0F (StreetTalk) are not filtered.
Configure explicit permit statements for traffic you want the router to
forward.
Step 6 If problems persist, continue testing for problem access lists on all routers
in the path from source to destination.
1 FDDI = Fiber Distributed Data Interface
2 ARP = Address Resolution Protocol
3 SARP = Sequence Address Resolution Protocol
Possible Problem Solution