Cisco WAN :: 819 Cellular Interface Drops When FastEthernet Comes Up
Apr 25, 2013
We're seeing a strange issue with a Cisco 819 that we're testing out. We are able to ping out over the Cellular interface just fine, but as soon as we plug a device into one of the FastEthernet ports we immediately drop the cell connection. The Cell interface then continues to bounce until we unplug the device. We are intending to setup a VPN tunnel, but we've even stripped all that out for the sake of troubleshooting.
I've been able to activate and configure the Cisco 819 router to connect to Verizon via interface Cellular 0 but when I connect a laptop to the router, int Cell 0 goes down.
Here's a snippet of what happens after I connect a laptop:
rt1#ping 8.8.8.8 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
I have an issue regarding using cellular interface on cisco 881G. The 3G module is Aircard 504. SIMcard is working on other devices, it have obtain IP address from mobile operator. But on cisco881G it doesnt work.
I'm having extreme issues in getting my vpn client to connect to a cisco router with a hwic-3g-hspa cellular interface
I have tested the config remotely by traversing the tunnel I have setup with a cisco vpn client and the client does connect, however when out on the road it doesn't respond, I'm litterally hitting my head against a brick here, everything just seem right I can't explain it.
I have done debugs and there is no sign of life, its as though when the vpn client connects to the router its not responding any way here is my config for the vpn clients part that is.
aaa new-model ! ! aaa group server radius vpn-client-server-group-1
I have problem with HWIC-3G-GSM configuration. The cellular interface doesn't get IP from ISP.The configured profile is always inactive.cellular 0/2/0 gsm profile create 1 m2m.plusgsm.pl chap plusgsm plusgsm
Can Cisco 881G cellular interface (Modem Firmware Version = K2_0_7_19AP C:/WS/FW) work with r-uim cards? I can't find correct answer in documentation .
I would like to configure the 881G to use both the cellular interface and Fe4 WAN port for internet connectivity.Interface Fe4 is connected to an ADSL router.
I have configure each interface with a default route and weighting:
ip route 0.0.0.0 0.0.0.0 Dialer0 200 ip route 0.0.0.0 0.0.0.0 FastEthernet 4 100
I need to configure Fe4 to get an address as a DHCP client:
interface FastEthernet4 ip address dhcp no shut duplex auto speed auto
How do I remove Fe4 from VLAN1? There is some existing config around VLAN 1:
interface Vlan1 ip address 10.73.0.1 255.255.255.0 ip helper-address 192.168.140.13 ip tcp adjust-mss 1400 no autostate ip sla 100 icmp-echo 10.64.4.15 source-interface Vlan1 tag 3G Keepalive frequency 10
Then I guess I need to adjust my Internet-IN ACL to allow broadcasts and UDP 67 and 68?
We have a Cisco 1760 router . We are facing sevier packet drops in the serial interface.
When i swap the router with another router link is working working fine.
Troubleshooting steps taken
1. Swap the serial cable with another working cable : no change in state
2. Reconfigure the encapsulation commands (with PPP and HDLC) : no change in state
3. Try with a decreased MTU packet Ping : no change in state
4. Decreased the Input queue and increased the output queue size using hold-queue in command : Comparatively the packet drop is reducing but still a 10 percent drop is happening.
I'm troubleshooting interface drops. However the output of the following show commands don't match number of drops. Based on the output, can you find out what is causing the drops? the G1/0/28 is the uplink. Is that just the port got overrun by the traffic?
#show int g1/0/28 GigabitEthernet1/0/28 is up, line protocol is up (connected) Hardware is Gigabit Ethernet, address is 0019.5667.191c (bia 0019.5667.191c)
MIB OID and the values.also i want to know the values og output packet and output packet drops MIB OID values of POS interface on GSR router (12000).because i am getting many output packet drops on these pos interface.how do i get these values from the router.
I have a pair of 5505's in transparent mode and connected them to C2960S. The inside interface (which is VLAN5 on the switchport) keeps dropping, going in to error state. There is no log reference in the switch and the interface shows as UP. The standby ASA has no problem, both interfaces on the switch is up. As soon as I failover the units over, the active node inside interfaces drops.
Vlan interface would be dropping packets on the input queue? Refer to the drops/flushes below. This is from a 6500 with a Sup720, there are a number of vlans on it. This 6500 and it's HSRP partner are exhibiting the same symptoms on all the vlans I bothered to check. This particular vlan is quite lightly used, there are only about fifteen user PC's (each with 100 Mb interfaces) on it.
There is a bit of information on input queue drops on Cisco, but this is focused on physical interfaces where I can understand some packets being dropped. I would think that Vlan interfaces would have different issues.I note the "no buffer" errors as well, that also concerns me, especially as that counter is quite close to the "flushes".
Vlan123 is up, line protocol is up Hardware is EtherSVI, address is 00d0.04fd.6000 (bia 00d0.04fd.6000) Description: Vlan123 Internet address is 10.123.123.7/24 MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive not supported ARP type: ARPA, ARP Timeout 04:00:00 [Code] .......
I have too much output drops in my cisco 7206 VxR NPE G1 router. I'm doing dot1Q on this interface and is connected to switch , i changed the router and IOS but still the error is same . What can be the reason . The interface on switch and router are 1000/Full and i changed the cable also . The traffic only comes about max70Mbps and it is really confusing. [code]
I have 2 Cat-6506's that are used for my WiSM's. The only thing in both Chassis is 2 X WiSMs a SUP-7203A and a 6516A line card.The only connection between the rest of the network and these chassis is on port gig 1/2.[code] If I have read other posts correctly all points to the ASIC being overun by that traffic being sent from my WiSMs out to the Network.
I have been having following situation on my WAN facing interface on Cisco2911 where the same number of broadcast, multicast and unknown protocol drops is happening. Not sure but some applications are struggling to run over on the WAN.
i noticed the "output drops" increasing in interface gi 1/0/1 in my switch 2960-S although the utilization of my interface is between 20% and 50 %
SW__A#sh interfaces gigabitEthernet 1/0/1 GigabitEthernet1/0/1 is up, line protocol is up (connected) MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec, reliability 255/255, txload 93/255, rxload 3/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec)
I have a 1801 router connected to a 3550 switch with a regular 802.1q trunk, and I am curious as to what may be causing the unknown protocol drops on the connected router interface.
The switch is without any configuration at all except the following for the trunk configuration on the interface connecting to the router.
There is nothing connected to the switch other than the router so the dropped traffic must be originating from the switch itself.The unknown protocol drop counter on the router increments by one every 30 seconds, and I tried using a packet sniffer but nothing noticeble showed up.
I read elsewhere on these forums that it might be udld, but that is not enabled by default, and just to be sure I tried disabling it on the interface and as expected it said it was not enabled, so I am ruling that one out.I also read that it could be because the router is recieving traffic from other protocols than IP, but I do not see how it applies in this case.
what does a 3550 send every 30 seconds that my 1801 does not understand?Could it have something to do with STP?
I am seeing Interface output drops that appera to be incorrect. When I do "Show Interface gi1/0/20", I will get interface output drops of "4294961382". But, when I do the same command again it shows "0" drops. Is this a reporting error? I am ruinning c3750-ipservicesk9-mz.122-58.SE.bin on a 3750 stack with 2 switches in the stack. [code]
One of my Catalyst 3750 switch have many out drops, I execute "sh mls qos int g2/0/3 statist" command, there are many output drops in queue3 threshold3. [code]
We are using 3825 Cisco router with IOS version 12.4(24)T2. The unknown protocol drops on our GigabitEthernet0/1 interface is increasing. This interface is connected to our modem. What could be causing this unknown protocol drops?
cnshaccent-gw-2#sh int GigabitEthernet0/1 GigabitEthernet0/1 is up, line protocol is up Hardware is BCM1125 Internal MAC, address is ffff.ffff.ffff (bia ffff.ffff.ffff)
I have an issue with input errors, overruns, and input reset drops on the inside interface of an 5580-40 (v8.2.5: Transparent mode) The box is not stressed at all according to the 'show' commands in the Cisco troubleshooting performance document for PIX/ASA v8.2.5. Nothing stands out because is pretty much normal, nothing (processes, RAM, blocks, IO...) really being highly utilized. I have replaced the 10Gig card and that seemed to work because the rate of errors has gone down tremedously. The next step is to RMA the whole box.My question is what would be the cause of the inside interface to stop processing traffic (I say that because the syslog server stops receiving messages) for some periods of 30 seconds periodically throughout the day and clients lose their connections (ie Outlook, IBM Sametime, Oracle, MSSQL..etc). Can the issue be somewhere related to the overruns and input errors?
I am having the most difficult time trying to setup the Cisco 1841 with a new Fiber Optic ISP. I have no experience with Cisco equipment but have taught myself some basics. All my attempts have ended with failure. I definitely will be taking some cisco courses soon.
Our current setup
20mbs Fiber Optic ISP
- They are providing us a x.x.129.233/30 WAN IP and a x.x.131.225/27 Public IP Block Cisco 1841 Router (Which has no configuration at all, it was wiped by the ISP) 1x HP Procruve 2610 24 port Gigabit Switch
What we need is simple, we just need to distribute the Public IP block through to the LAN on the switch side. I would post a config if I had one already made, but the 1841 is a clean slate. I just wiped it again to start fresh.
I have a SR520 router with the ADSL WAN built in. I am looking to ignore the ADSL port and utilise the 4 FA ports to route between two networks.Can I configure the ports on the switch part of the router to become Layer 3 and take there own Ip addresses? If so I can save myself the purchase of a new router.I have used loopbacks before but not sure that will work.
I am getting the new Cisco 2921/K9 router, which comes by default with 3 Integrated 10/100/1000 Ethernet ports. I have Comcast Cable as the ISP, so can I connect the ISP RJ45 Copper cable directly to one of the integrated ports or do I have to buy another WAN Interface Cards for the ISP.
We have 2.5 Mbps connection from an ISP at our branch routers (1800 series)with single physical link terminated on FE0 but have two subinterfaces with separate subnets.
I have applied the following policy-map outbount under physical Interface FastEthernet 0. Show poliocymap output is as follows
Policy Map QoS-OUT Class Email priority 512 (kbps) Class SQL priority 512 (kbps) Class File-Copy police cir 1024000 bc 32000 conform-action transmit exceed-action drop Class CCTV police cir 384000 bc 12000 conform-action transmit exceed-action drop
But it seems that sometimes( not all the time ) the CCTV traffic seems to exceed the 384k and chokes the entire link(2.5 mbps).
