03-08-2003 07:10 AM - edited 03-02-2019 05:42 AM
hi
i have 2620 router, and i would like to create subinterfaces on my fastethernet 0/0
when i create it, i would make an ip address but this is the message errore:
Configuring IP routing on a LAN subinterface is only allowed if that
subinterface is already configured as part of an IEEE 802.10, IEEE 802.1Q, or IS
L vLAN.
what can i do?
thanks.
03-08-2003 08:44 AM
Before you put the ip on try this on the subinterface.
Encap dot1q
Your just missing the tagging type of isl or dot1q and the vlan 10 it's associated with.
Hope this helps you,
Don
03-08-2003 11:52 PM
hi
il would encapsulate this subinterface with isl for my vlan, to make my router a router on the stick, but when i enter to the subinterface config, there is no encaplsulation command, this the output when i do a ?
access-expression Build a bridge boolean access expression
arp Set arp type (arpa, probe, snap) or timeout
backup Modify backup parameters
bandwidth Set bandwidth informational parameter
bridge-group Transparent bridging interface parameters
carrier-delay Specify delay for interface transitions
cdp CDP interface subcommands
cmns OSI CMNS
custom-queue-list Assign a custom queue list to an interface
default Set a command to its defaults
delay Specify interface throughput delay
description Interface specific description
duplex Configure duplex operation.
exit Exit from interface configuration mode
fair-queue Enable Fair Queuing on an Interface
full-duplex Configure full-duplex operational mode
half-duplex Configure half-duplex and related commands
help Description of the interactive help system
hold-queue Set hold queue depth
ip Interface Internet Protocol config commands
keepalive Enable keepalive
llc2 LLC2 Interface Subcommands
load-interval Specify interval for load calculation for an
interface
logging Configure logging for interface
loopback Configure internal loopback on an interface
mac-address Manually set interface MAC address
max-reserved-bandwidth Maximum Reservable Bandwidth on an Interface
media-type Interface media type
mtu Set the interface Maximum Transmission Unit (MTU)
multilink-group Put interface in a multilink bundle
netbios Use a defined NETBIOS access list or enable
name-caching
no Negate a command or set its defaults
ntp Configure NTP
priority-group Assign a priority group to an interface
random-detect Enable Weighted Random Early Detection (WRED) on an
Interface
rate-limit Rate Limit
service-policy Configure QoS Service Policy
shutdown Shutdown the selected interface
snapshot Configure snapshot support on the interface
snmp Modify SNMP interface parameters
speed Configure speed operation.
standby HSRP interface configuration commands
timeout Define timeout values for this interface
traffic-shape Enable Traffic Shaping on an Interface or
Sub-Interface
transmit-interface Assign a transmit interface to a receive-only
interface
trunk-group Configure interface to be in a trunk group
tx-ring-limit Configure PA level transmit ring limit
what can i do?
can u help please
thanks.
03-10-2003 12:44 AM
You need IP Plus IOS.
Regards,
Milan
03-10-2003 01:06 AM
oh thanks,
so i need ip plus ios,
if i get this ios, is it possible to seperate to lan by my subinterface on my 26.20, or the subinterfaces are use only in case of vlans.
and in the case of router on the stick, when we intercconect our vlans, is it possible to create access list to allow some vlan to see other vlan and vise versa?
thank you so much.
03-11-2003 01:30 AM
hi
i am very surprised! because when i create a sub interface on my serial, and put on it an ip adress, it works, but if i do it whith my e0 it does'nt work.
Configuring IP routing on a LAN subinterface is only allowed if that
subinterface is already configured as part of an IEEE 802.10, IEEE 802.1Q, or IS
L vLAN.
why?
thanks.
03-12-2003 12:37 AM
You need to configure
interface FastEthernet0/0.20
encapsulation dot1Q 20
first and then you are able to add the IP address to the subinterface.
The reason is following:
If you want to assign subinterfaces to different VLANs and route between them it is necessary to separate VLAN traffic (i.e. to configure 802.1q trunk, e.g.).
You can "route" between VLANs (using E0 secondary IP address, e.g., you don't need subinterfaces then) but the traffic of particular VLANs is not separated, it's shared all over the Ethernet LAN.
But configuring true routing requires VLAN traffic separation on your Ethernet.
Regards,
Milan
03-12-2003 12:52 AM
sorry tu bother you, but when a do a ? on my subinterface, there is no encapsulation command, and this is the output:
cisco(config-subif)#?
Interface configuration commands:
arp Set arp type (arpa, probe, snap) or timeout
backup Modify backup parameters
bandwidth Set bandwidth informational parameter
bridge-group Transparent bridging interface parameters
cdp CDP interface subcommands
default Set a command to its defaults
delay Specify interface throughput delay
description Interface specific description
exit Exit from interface configuration mode
ip Interface Internet Protocol config commands
llc2 LLC2 Interface Subcommands
mtu Set the interface Maximum Transmission Unit (MTU)
netbios Use a defined NETBIOS access list or enable name-caching
no Negate a command or set its defaults
ntp Configure NTP
rate-limit Rate Limit
service-policy Configure QoS Service Policy
shutdown Shutdown the selected interface
snapshot Configure snapshot support on the interface
standby HSRP interface configuration commands
timeout Define timeout values for this interface
thank you verry much.
03-12-2003 01:21 AM
This is what you should see:
router(config-subif)#?
Interface configuration commands:
arp Set arp type (arpa, probe, snap) or timeout
backup Modify backup parameters
bandwidth Set bandwidth informational parameter
bridge-group Transparent bridging interface parameters
carrier-delay Specify delay for interface transitions
cdp CDP interface subcommands
default Set a command to its defaults
delay Specify interface throughput delay
description Interface specific description
dspu Down Stream PU
encapsulation Set encapsulation type for an interface
exit Exit from interface configuration mode
fras DLC Switch Interface Command
ip Interface Internet Protocol config commands
llc2 LLC2 Interface Subcommands
mtu Set the interface Maximum Transmission Unit (MTU)
netbios Use a defined NETBIOS access list or enable name-caching
no Negate a command or set its defaults
ntp Configure NTP
rate-limit Rate Limit
shutdown Shutdown the selected interface
sna SNA pu configuration
snapshot Configure snapshot support on the interface
standby Hot standby interface subcommands
timeout Define timeout values for this interface
traffic-shape Enable Traffic Shaping on an Interface or Sub-Interface
Are you sure your IOS is IP Plus?
I'm running c2600-is-mz.120-4.T.bin and I think the "is" in the file name means IP Plus.
Use CCO Software Advisor
(http://www.cisco.com/cgi-bin/Support/CompNav/Index.pl) to find the correct IOS. Try to find "IEEE 802.1Q VLAN Support" IOS feature.
Regards,
Milan
03-12-2003 02:35 AM
yes i think that the probléme is in my ios!
i have another pb
when i just restarted my router, it does not give me the control
and it displays:
%LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up
%LINK-3-UPDOWN: Interface Serial0/0, changed state to down
%SYS-5-CONFIG_I: Configured from memory by console
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state t
o up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to down
%SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-I-M), Version 12.2(7b), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Tue 05-Mar-02 04:26 by pwade
%SNMP-5-COLDSTART: SNMP agent on host cisco is undergoing a cold start
and when i press enter nothing happens
do you know why and what can i do?
thank you verry much.
03-12-2003 02:53 AM
there is some news.
now i can't manage my router via console, but i can do it whit vty.
really i don't anderstand.
and i am renning c2600-i-mz.122-7b.bin.
06-20-2003 07:44 AM
You need to have a IOS IP Plus or better to assign IP addresses to sub-interfaces, you also need to set the encapsulation type first as well.
interface Ethernet0/1
description Dot1q Trunk
bandwidth 10000
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip route-cache
no ip split-horizon
no ip mroute-cache
ntp disable
!
interface Ethernet0/1.1
description Subif 1
bandwidth 10000
encapsulation dot1Q 8
ip address 1.1.1.1 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
no ip split-horizon
no ip mroute-cache
traffic-shape rate 10000000 250000 250000 1000
I hope that helps.
Stephen
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