tunnel is up, line protocol is down

crypto ikev2 . Tunnel 1 is up line protocol is down Description: Tunnel Interface Internet address is X.X.X.X 255.255.255.255 Source Y.Y.Y.Y Destination X.X.X.X Tunnel … For mGRE tunnel interfaces, since there is no fixed tunnel destination, some of the previous checks for P2P tunnels are not applicable. what should i do in order to have … There are four possible states in which a GRE tunnel interface can be: When a tunnel interface is first created and no other configuration is applied to it, the interface is not shut by default: In this state, the interface is always up/down: This is because the interface is administratively enabled, but since it does not have a tunnel source or a tunnel destination, the line protocol is down. CLI: > show vpn ipsec-sa 3. Found inside – Page 324To determine whether the tunnel interface is up or down, use the show ip ... Tunnel on R1 R1# show interfaces tunnel 0 Tunnel0 is up, line protocol is up ... This causes data packets that go through the GRE tunnel to be "black holed", even though an alternate route that uses PBR or a floating static route via another interface is potentially available. A. IP routing has not been enabled on tunnel interface. Down/Up - The tunnel is down and the line protocol is up. Correctly set tunnel source and destination and verify connectivity between said … . D. You can reset the tunnel via the ASDM software as well as in the command line. Found inside – Page 137Example 23 shows reconfiguration on R2 for the tunnel interface address mask and MTU to ... is up, line protocol is up Internet Address 120.100.40.2/29, ... Last Modified . The most important statistic of the show interface command is the output of the line and data-link protocol status. Up/down - This implies that, even though the tunnel is administratively up, something causes the line protocol on the interface to be down. Cisco ethernet … Petes-ASA# show interface tunnel 1 Interface Tunnel1 "AZURE-VTI01", is up, line protocol is up Hardware is Virtual Tunnel MAC address N/A, MTU 1500 IP address 169.254.225.1, subnet mask 255.255.255.252 Tunnel Interface Information: Source interface: outside IP address: 126.63.123.43 Destination IP address: 40.115.49.202 Mode: ipsec ipv4 IPsec . VPN devices that don’t support Border Gateway Protocol (BGP) must use static routing. Note that, for most protocols, installing an opkg package is required for protocol support. This means that each tunnel endpoint does not keep any information about the state or availability of the remote tunnel endpoint. How do I check the current status of my VPN tunnel? Post. Found inside – Page 244... *May 19 22:46:37.099: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel0, changed state to up Oops—did I forget to set my tunnel mode and transport ... Up/down - This implies that, even though the tunnel is administratively up, something causes the line protocol on the interface to be down. How do I check the AWS VPN tunnel status? This is probably my biggest annoyance with Cisco routers. VLAN1 is up, line protocol is up Hardware is EtherSVI, Address is 00e0.0f42.0071(00e0.0f42.0071) MTU 1500 bytes, BW 1000000 kbit, DLY 2000 usec Encapsulation ARPA, loopback not set 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts, 0 multicasts It is then matched against Tunnel 0, becomes decapsulated, and is forwarded to the destination IP which is the tunnel source IP address on Router A. Yeah not all IOS image feature sets support the 6in4 tunneling needed to use a HE.net tunnel. The basic rules do not cover the case in which the GRE tunneled packets are successfully forwarded, but are lost before they reach the other end of the tunnel. I added protocol=!gre to the connection-state=invalid action=drop rule, and enabled pptp. by Guest » Thu Jun 24, 2010 3:41 am. Found inside – Page 268Example 9-14 show interfaces tunnel 0 Command Output on RI R1 # show interfaces tunnel o Tunnel is up , line protocol is up Hardware is Tunnel Internet ... Found inside – Page 398The use of routing and bridging is on a per-protocol basis. ... partial sample display: Serial 0 is administratively down, line protocol is down Hardware is ... C. The router is trying to route to the tunnel destination address using the tunnel interface itself. Found inside – Page 322例6.5.6 宛先の指定ミス Router1#show interface tunnel 0 Tunnel0 is up, line protocol is down Hardware is Tunnel Internet address is 192.168.0.1/30 MTU 17916 ... Tunnel 1 is up line protocol is down Description: Tunnel Interface Internet address is X.X.X.X 255.255.255.255 Source Y.Y.Y.Y Destination X.X.X.X Tunnel mtu is set to 1100 Tunnel is an IP GRE TUNNEL Tunnel is Trusted Inter Tunnel Flooding is enabled Tunnel keepalive is enabled Tunnel keepalive interval is 10 seconds, retries 3 Heartbeats sent . The number of interface that is UP in Protocol is 4 The number of interface that is DOWN in Protocol is 22 Interface IP Address/Mask Physical Protocol VPN GigabitEthernet0/0/0 192.168..1/24 down down l3vpn LoopBack1 172.17.2.253/32 up up(s) -- Adding VRF causes the line protocol on Router B tunnel 0 to be down. Found insideThoroughly revised and expanded, this second edition adds sections on MPLS, Security, IPv6, and IP Mobility and presents solutions to the most common configuration problems. Verify that your local firewall allows the same service in its access control lists (ACLs) and firewall policies. This allows you to verify configuration of the 3rd party device without helping the customer configure said device. You can click on the Tunnel info to get the details of the Phase2 SA. The output of the show ip interface brief command indicates that Serial0/0/0 is up but the line protocol is down. Click here to return to Amazon Web Services homepage. The tunnel interface adds a GRE header to the packet and queues the packet to the transport protocol destined to the destination address of the tunnel interface. Also there are other applications that trigger when an interface changes state; for example, 'backup interface '. Found inside – Page 89Example 3-13 Tunnel Failure at SITE2 SITE2 - r ( config ) #interface tunnel0 SITE2 ... Method Status Protocol Serial0 / 0 10.0.3.11 YES NVRAM up Loopbacko ... Review the Status of your VPN tunnel. Note: GRE tunnel keepalives are only valid and have an effect on P2P GRE tunnels; they are not valid and do not have any effect on mGRE tunnels. Tunnel1 is up, line protocol is down. Note about tunnel state: A tunnel interface is in up/down state right after we create it (with the "interface tunnel <tunnel-number>" command). Found insideThe only tricky part of configuring a tunnel is making sure that the source of ... interfaces tunnel1 Tunnel1 is up, line protocol is up Hardware is Tunnel ... The controller can also operate as a layer-3 switch that can route traffic between VLANs defined on the controller.. You can configure one or more physical ports on the controller to be members of . Found inside – Page 382For example, distance-vector routing protocols (such as RIP) generally select ... might be that the tunnel interface is up, but the line protocol is down. Hardware is Tunnel. Found inside – Page 187Finally, referring back up to R1's configuration, its tunnel destination ... show interfaces tunnel0 Tunnel0 is up, line protocol is up Hardware is Tunnel ... The line protocol on an interface configured with PPP comes up only when all LCP and NCP sessions are negotiated successfully. A valid tunnel destination is one which is routable. Found insideAfter configuring the tunnel source and destination IP addresses, the router prompts that the “line protocol on Interface Tunnel0” changed state to up: ... This no workie :) To fix … It is both administratively up and it's protocol is up as well. If the indicator of a connected interface on CloudEngine series switches is off, the interface is not up. If the output reveals that serial 1/1 is up and the line protocol is up, then the interface is up and running. With Cisco IOS® Software Release 12.2(8)T, it is possible to configure keepalives on a P2P GRE tunnel interface. We can see above that bringing down the Tunnel interface on R2 has no impact on the line protocol status of the connected GRE tunnel interface on R1. Found insideNote To further clarify, the spoke-to-hub registration is taken down and shows as the ... The actual tunnel interface still has a line protocol state of up. Found inside – Page 104R3 (config) #int tun 3001 * Mar 1 00:54: 17.359:% LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel3001, changed state to down R3 (config-if) #tunnel ... Tunnel interface protocol is down. AymanDasa asked on 1/14/2010. Jan 12, 2020. The route to the tunnel destination address is through the tunnel itself, which results in recursion. After the tunnel interface name is changed to Tunnel 1/0/0, the GRE tunnel becomes up. Found inside – Page 253Router#sh int s0/0/0 Serial0/0 is up, line protocol is up Hardware is HD64570 MTU 1500 bytes ... 0 output buffers swapped out 0 carrier transitions DCD=down ... Question On which switch interface would an administrator configure an IP address so that the switch can be managed remotely? Found inside – Page 3-26To determine whether the tunnel interface is up or down, use the show ip ... manual up up R1# R1# show interface Tunnel 0 Tunnel0 is up, line protocol is up ... We will see tunnel 0 is still in "up/down" state. We can only put it into "administratively down/down" by . I followed your example but couldn't get my tunnel interfaces to come up, tunnel was up, line protocol was down It wasn't until I supplied the "tunnel key" command on all 3 of my tunnel interfaces, that the tunnels came up and traffic was flowing fine. Tunnel0/0/1 current state : UP Line protocol current state : DOWN Description: Route Port,The Maximum Transmit Unit is 1500 Internet Address is 5.5.5.1/24 … In … See example below for command to identify tunnel device name and peer ip and then add route. crypto ikev2 policy VPN_SCALE_TEST_IKEV2_POLICY proposal VPN_SCALE_TEST_IKEV2_PROPOSAL ! Tunnel1 is up, line protocol is down. Found insideOnce the tunnel source interface or source IP address is advertised int ... generated 01:56:24.808: %LINEPROTO-5-UPDOWN: Line protocol on Interface ... Basically when the tunnels come up the commands tell the router to get to the remote end of the GRE tunnel to use the tunnel interface.. GRE tunnels are designed to be completely stateless. To check if phase 2 ipsec tunnel is up: GUI: Navigate to Network->IPSec Tunnels GREEN indicates up RED indicates down. The tunnel was just reset. Down/Up - The tunnel is down and the line protocol is up. In this blog post we are going to explain how Generic Routing Encapsulation (GRE) tunnel might be used in a situation when the Border Gateway Protocol (BGP) speaking routers are connected via the non BGP-speaking routers. The below topics discusses the tunneling of GRE, encapsulation and de-capsulation process, configuring GREs and verifying the working of GREs. The keep alive is 3 2 on both of them. Under normal circumstances, there are only three reasons for a GRE tunnel to be in the up/down state: These three rules (missing route, interface down, and misrouted tunnel destination) are problems local to the router at the tunnel endpoints and do not cover problems in the intervening network or other features related to the GRE tunnel that might be configured. Hardware is Tunnel. Line protocol on Interface Tunnel0, changed state to down 07:12:59: %LINEPROTO-5-UPDOWN: What could be the reason for the tunnel flapping? Enter a Name for the Phase 2 configuration, and select a Phase 1 configuration from the drop-down list. We cannot put it into down/down state, even if we shut down the source interface. You can use the standard show interface command on a tunnel interface to see a considerable amount of useful information about it: Router1# show interface Tunnel5 Tunnel5 is up, line protocol is up Hardware is Tunnel Internet address is 192.168.66.5/30 MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec, reliability 255/255, txload 1/255, rxload 1/255 . : $ ip address 4: ppp0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1400 qdisc fq_codel state UNKNOWN group default qlen 3 link/ppp inet 10.192.168.40 peer 192.0.2.1/32 scope global ppp0 valid_lft forever preferred_lft forever Branch#show interfaces tunnel 1 Tunnel1 is up, line protocol is up Hardware is Tunnel Internet address is 192.168.13.3/24 MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation TUNNEL, loopback not set Keepalive not set Tunnel source 192.168.23.3 (FastEthernet0/0), destination 192.168.12.1 . If the tunnel status is UP, verify that the Details column has one or more BGP routes listed. R1#show ip interface tunnel 100 Tunnel100 is up, line protocol is up Internet address is 102.1.1.1/24. Re:Tunnel is up, line protocol is down. The next hop server is misconfigured. my question is how can make the protocol of tunnel 1 and 2 up, by the way when i make reload … Check the current status using the Amazon VPC console. In above example its "Serial 0/0/0 is up, line protocol is down" which indicates that physical layer is working properly but there is some issue in data link layer configuration. © 2021 Cisco and/or its affiliates. For example, if the tunnel source was changed to. Up/Down - The tunnel is up and the line protocol is down. 0 unknown protocol drops 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 pause output 0 output buffer failures, 0 output buffers swapped out. You can use the standard show interface command on a tunnel interface to see a considerable amount of useful information about it: Router1# show interface Tunnel5 … GigabitEthernet0/0 is up, line protocol is down (disabled) Hardware is CN Gigabit Ethernet, address is 00e0.8fc7.5901 (bia 00e0.8fc7.5901) MTU 1500 bytes, BW 1000000 … The controller operates as a layer-2 switch that uses a VLAN as a broadcast domain. In order to make this interface up/up, a valid tunnel source and tunnel destination must be configured: So far, the tunnel has been configured as a point-to-point (P2P) GRE tunnel, which is the default. Reset/down - This is usually a transient state when the tunnel is reset by software. * The clock rate is not set on the DTE. For more information, see Monitoring VPN Tunnels Using Amazon CloudWatch. Phase 2 of Internet Protocol Security (IPSec) is established, but BGP isn't established. May 5, 2017. 6.2.1.BASE. For details on the Interface State Control Feature, see the. There are so may little "gotchas" when it comes to certain images only supporting certain things. All rights reserved. This is probably my biggest annoyance with Cisco routers. Internet address is 76.70.73.74/30. . 0 unknown protocol drops 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 pause output 0 output buffer failures, 0 output buffers swapped out. Configuring VLANs. Here are the reasons an mGRE tunnel's line protocol can be in a down state: When a tunnel source IP address is configured as a redundancy IP address (for example, a Hot Standby Router Protocol Virtual IP (HSRP VIP) address), then the tunnel interface state tracks the redundancy state. However, it does not have to be reachable, which can be seen from this ping test: There is no route, which includes the default route, to the tunnel destination address. This document describes how to check the switch interface or port status and how to locate an interface physically down fault and restore the interface to the up state.Major causes of the interface physically down event include hardware and software failures.Hardware failures: include hardware failures of the local and peer devices, such as failures of cards, interfaces, optical modules . Yeah not all IOS image feature sets support the 6in4 tunneling needed to use a HE.net tunnel. With this change, the tunnel interface dynamically shuts down if the keepalives fail for a certain period of time. R1#show ip interface tunnel 100 Tunnel100 is up, line protocol is up Internet address is 102.1.1.1/24. (Choose two.) Tunnel interface protocol is down. %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel1, changed state to down %OSPF-5-ADJCHG: Process 1, Nbr 0.0.0.7 on Tunnel1 from FULL to DOWN, Neighbor Down: Interface down or detached . Correctly set tunnel source and destination and verify connectivity between said endpoints via:ping <tunnel-dst> source <tunnel-src>.Hope this helps, please rate post if it does! Found insideA tunnel in the Up/down state indicates that the tunnel interface is arranged but something is interfering with the line protocol. Some example configurations are provided at the end of the page. Packet Sent The number of packets sent on the tunnel since it was last . Found insideIn an aggressive design, the headend routing protocol can scale up to 500 ... interval and number of retries, the tunnel line protocol is marked “down. After a tunnel interface is created, its physical layer status is Up. The "show interface" command on a Cisco IOS router or switch gives you a lot of information. You should see that the tunnel interface is now showing as an interface on your router. Found inside – Page 446... Tunnel0 192.168.10.1 YES manual up up YES unset administratively down down YES ... tunnel 0 command: Corp#sh int tun0 Tunnel0 is up, line protocol is up ... 5. In my example, 63.1.1.2 was the source and 63.1.1.1 was the destination. Found inside – Page 460Example 17-4 show interface tunnel Command Output Router# show interfaces tunnel 0 Tunnel4 is up, line protocol is down Hardware is Routing Tunnel MTU ... While troubleshooting a GRE tunnel interface issue, show interface command output displays tunnel status up, but line protocol is down. This is tracked by Cisco bug ID CSCuq31060. This is the stateless nature of GRE tunnels by default. by Guest » Thu Jun 24, 2010 3:41 am. Re: tunnel up line protocol down. Specifically, if the line protocol for an interface is changed to down, then any static routes that point out that interface are removed from the routing table. Generic routing encapsulation (GRE) provides a private, secure path for transporting packets through an otherwise public network by encapsulating (or tunneling) the packets. A … Question Which two issues might cause excessive runt and giant frames in an Ethernet network? In the ASDM (Version 6.3): Go to Monitoring, then select VPN from the list of Interfaces; Then expand VPN statistics and click on Sessions. Found inside – Page 174B. The destination on Router A of the tunnel is incorrect. ... RouterA#show interfaces serial 0/0 Serial0/0 is up, line protocol is down (disabled) Hardware ... This is probably my biggest … Found inside – Page 2771 on Tunnel O from FULL to DOWN, Neighbor Down : Interface down or detached %LINE PROTO-5–UPDOWN: Line protocol on Interface Tunnel0, changed state to down ... Yeah not all IOS image feature sets support the 6in4 tunneling needed to use a HE.net tunnel. Top. Found inside – Page 154As soon as we add the destination IP address to the tunnel, the tunnel interface comes up on Router A: Router-A# sho int tu0 Tunnel0 is up, line protocol is ... Method Status Protocol FastEthernet0/0 10.10.10.2 YES manual up up … Run the display interface command on the device to check the interface status. tunnel destination 122.128.223.122. tunnel protection ipsec profile TEST. I wonder what can cause that the first line output of the command "show interfaces" will be: "fastEthernet is up, line protocol is down". The tunnel interface adds a GRE header to the packet and queues the packet to the transport protocol destined to the destination address of the tunnel interface. Line Protocol Status With APS. It just means that the line (L3 reachability in this case) status is up, but the protocol status (gre) is down. TenGigabitEthernet2/1/5 is down, line protocol is down (err-disabled) Hardware is C6k 10000Mb 802.3, address is d072.dcad.3a5a (bia d072.dcad.3a5a) Internet address is … If this tunnel were to be changed to a multipoint GRE (mGRE) tunnel, then all that is required for the tunnel to be in an up state is a valid tunnel source (an mGRE tunnel can have many tunnel destinations, so that cannot be used to control the tunnel interface state): At any point, if the tunnel interface is administratively shut down, the tunnel immediately goes into an administratively down/down state: Normally, a P2P GRE Tunnel interface comes up as soon as it is configured with a valid tunnel source address or interface which is up and a tunnel destination IP address which is routable as shown in the previous section. Found inside – Page 58Regarding manual tunnels, a permanent link can be configured between two IPv6 ... to bring the line protocol of the GRE tunnel interface down if the remote ... Ben helps you troubleshoot issues with VPN tunnels. . © 2021, Amazon Web Services, Inc. or its affiliates. Your router has a public IP address, correct? Monitoring VPN Tunnels Using Amazon CloudWatch, Verify that the security groups of Amazon Elastic Compute Cloud (Amazon EC2) instances in your VPC allow appropriate access. If the Interface State Control feature is enabled for Dynamic Multipoint VPN (DMVPN) and none of the NHSs respond, then the line protocol is put in a down state. Found inside – Page 949Corp(config-if)#tunnel destination 63.1.1.2 Corp#sho run interface tunnel 0 ... Line protocol on Interface Tunnel0, changed state to up Oops—did I forget to ... Checking Whether the Protocol Status of the Tunnel Interface Is Normal. native VLAN mismatch damaged […]Continue reading. Select Advanced. Found inside – Page 484s1 s2 Internet h1 h2 □ Up to 1000 peers for the Cisco 7600 series router (or ... This functionality allows the line protocol of the tunnel interface to ... Next, notice the states of LCP, IPCP and CDPCP. When the line protocol of a tunnel interface is down it usually means a mismatched tunnel destination or source. <HUAWEI> display interface 10ge 1/0/5 10GE1/0/1 current state : DOWN(Transceiver type mismatch) (ifindex: 198) Line protocol current state : DOWN---- More ---- Description. Found inside439: ; LINEPROTO-5–UPDOWN: Line protocol on Interface Tunnel 192, changed state to down 22 *May 8 15:42: 11.447: % DUAL–5–NBRCHANGE: IP =EIGRP (0) 100: ... In this example, a misconfigured ipc zone default configuration causes redundancy to be in the NEGOTIATION state and keeps such tunnel interfaces in a down state: In addition to checking the reasons previously outlined, the tunnel line state evaluation for the tunnel down reason can be seen with the show tunnel interface tunnel x hidden command as shown here: Note: There is an open enhancement to make the tunnel down reason more explicit in order to indicate that it is due to the redundancy state not being active. Verify with the following commands: Corp# sh ip int brief. Open the Phase 2 Selectors panel (if it is not available, you may need to click the Convert to Custom Tunnel button). Up/up - This implies that the tunnel is fully functional and passes traffic. Found inside... Local interface: FastEternet0/0.10 up, line protocol up, Eth VLAN 10 up Destination address: 192.168.1.102, VC ID: 10, VC status: down Tunnel label: not ... What are two possible causes for the line protocol being in the down state? We will also discuss the problems with MTU size reduction due to tunnels and the Path MTU . Reset/down - … Go to VPN > IPsec Tunnels and create the new custom tunnel or edit an existing tunnel. Found insideWhen the number of retries exceeds the configured value, the line protocol will be brought down on the tunnel interface on VPNSPOKE1EAST. In the up/down ... Found inside – Page 170Tunnel interfaces are numbered like all interfaces in IOS, with the first being ... Line protocol on Interface Tunnel0, changed state to down Tunnels must ... That's the case, because the tunnel is down. In Cisco IOS Software Releases 15.4(3)M/15.4(3)S and later, the GRE tunnel line protocol state will follow the IPsec Security Association (SA) state, so the line protocol will remain down until the IPsec session is fully established. Generic routing encapsulation (GRE) is a virtual point to point link that encapsulates data traffic in a tunnel . AymanDasa asked on 1/14/2010. A consequence of this is that, by default, the local tunnel endpoint router does not have the ability to bring the line protocol of the GRE Tunnel interface down if the remote end of the tunnel is unreachable. If the tunnel status is UP, verify that the Details column has one or more BGP routes listed. The cisco line/protocol status of up/down doesn't mean that it's flapping. Found insideThe actual tunnel interface still has a line protocol state of up. During normal operation of the ... If the tunnel is not being used, it is torn down. Apologies for that not being clear. my question is how can make the protocol of tunnel 1 and 2 up, by the way when i make reload for the router the protocols of tunnels comes up for 10 sec after that again change to down This document describes scenarios where other factors might influence the state of the GRE tunnel. I thought "vrf forwarding" would keep the tunnel interface in the GRT. Found insideD. An access list is blocking traffic on the tunnel interface. 8. ... R1#show interfaces serial 0/0/1 Serial0/0/0 is up, line protocol is down Hardware is ... could it be anything to do with keep alive? The ability to mark an interface as down when the remote end of the link is not available is used in order to remove any routes (specifically static routes) in the routing table that use that interface as the outbound interface. Re:Tunnel is up, line protocol is down. VPN devices that support BGP can use dynamic routing. BGP over GRE Tunnel. Found inside – Page 337Another indication that a recursive route loop has been detected is if the tunnel interface is up and the line protocol is down . To avoid recursive loops , keep passenger and transport routing information in separate locations by ... This was committed with Cisco bug ID CSCum34057 (initial attempt with Cisco bug ID CSCuj29996 and then backed out with Cisco bug ID CSCuj99287). Tunnel is up, line protocol is down Hi, I have two cisco routers with tunnels between them. The IP address of the tunnel interface and the physical and data link status shows as up/up. Review the Status of your VPN tunnel. There are so may little "gotchas" when it comes to certain images only supporting certain things. %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel1, changed state to up 00:25:09: %OSPF-5-ADJCHG: Process 10, Nbr 10.0.0.1 on Tunnel1 from LOADING to FULL, Loading Done %ADJ-5-PARENT: Midchain parent maintenance for IP midchain out of 1 65E900C0 - looped chain attempting to stack %TUN-5-RECURDOWN: 1 temporarily disabled due to recursive . Tunnel destinations are reachable: C1841#sh ip int bri Interface IP-Address OK? The route to the tunnel destination address is through the tunnel itself. Found inside – Page 457Sample Display The following is sample output from the show interface tunnel command : Router # show interfaces tunnel 4 Tunnel4 is up , line protocol is down Hardware is Routing Tunnel MTU 1500 bytes , BW 9 Kbit , DLY 500000 usec ... All rights reserved. Found insidePIM (0): Initiating register =ncapsulation tunnel creation for RP 10, 224, ... DOWN: Line protocol ori Interface Tunnell, changed state to up PIM (0) ... So, if i take "vrf forwarding CUSTNAME" off of tunnel 94, the tunnel is up and pingable, but I need to send the VRF to the remote router. If the tunnel status is … You can also use Amazon CloudWatch to check the status of a VPN tunnel, be notified when the status of the tunnel changes, and access metric data over time to help evaluate the tunnel's stability. If the tunnel is coming up but not passing traffic: Ensure the Protocol in the tunnel config settings is set . Found inside – Page 644... vc 123 detail Local interface : Se4 / 0 up , line protocol up , FR DLCI 50 down Destination address : 172.16.1.4 , VC ID : 123 , VC status : down Tunnel ... Cisco Bug: CSCvc78926 - GRE tunnel is up but line protocol is down with GRE tunnel keepalive configuration on CRS Topaz. Products (1) Cisco Carrier Routing System ; Known Affected Releases . Found insideAfter configuring the tunnel source and destination IP addresses, the router prompts that the “line protocol on Interface Tunnel0” changed state to up: ... Found inside – Page 109To fix the problem, do not modify any tunnel or EIGRP parameters. ... %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel0, changed state to down 4d10h: ... As the tunnel never really comes up in a stable way, you don't know, how the routing table would be, if the . Tunneling interface protocols This page describes all available tunneling protocol usable in /etc/config/network and their options. CCNA (ICND2) Cert Practice Exam 1. The interface that anchors the tunnel source is down. Found inside – Page 36A routing loop occurs when the passenger protocol and the transport protocol are identical . ... Another indication that a recursive route loop has been detected is if the tunnel interface is up and the line protocol is down .
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tunnel is up, line protocol is down 2021