The operating system used on the majority of Cisco's routers and switches; a package of routing, switching, internetworking and telecommunications functions tightly integrated with a multitasking operating system. For Apple's mobile device OS, use apple-ios.

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18 views

iPad: Unable to connect to a Wi-Fi without internet

I'm currently developing an embedded system hosting a web-server and working as an Access Point. The web server is needed to configure the embedded system using a tablet. Here is the configuration ...
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0answers
13 views

IIS ssl not working on osx/ios safari video stream

My IIS8.5-server is reverse proxying to my server which is streaming a video from database. My video streams fine on https with chrome, and i have enabled partial content accept ranges on my server. ...
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0answers
14 views

Linphone iOS behind CGNAT sets wrong Contact Header

We are using Linphone client on iOS over Verizon network. Our client sends wrong IP address on Contact header at 200 OK message as a response to INVITE message from Asterisk. SIP trace Our client's ...
1
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0answers
21 views

Nginx with http2 and ios WKWebView

We are running nginx on a debian system as our loadbalancer nginx version: nginx/1.9.10 built with OpenSSL 1.0.2e 3 Dec 2015 (running with OpenSSL 1.0.2g 1 Mar 2016) We had http2 activated in our ...
0
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0answers
15 views

IOS + StrongSwan + Windows RADIUS (NAP)

We've got Windows NAP, Windows Certification Services and many kind of clients wich uses Windows, android, OS X and iOS. All clients have certificates issued Windows CA, and I need that they connect ...
3
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0answers
53 views

Nginx - SSL forward secrecy and iOS9 support

I'm trying to bring a couple of Linux web servers into line with the current recommendations for SSL - in particular for allowing iOS9 to connect. One server is CentOS 7, the other CentOS 6.4. I have ...
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votes
2answers
76 views

Not able to resolve my domain name intermittently [closed]

I am experiencing a strange behavior w.r.t DNS resolution when connected to certain WiFi networks. (only on iOS devices) Issue is: Safari is able to resolve my domain name correctly but sometimes for ...
0
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0answers
26 views

iOS ipsec vpn configuration to bypass private ips (lan ips) being routed on vpn tunnel

I am using an ipsec based vpn configuration profile to connect a number of devices on my network to a remote strongswan based vpn server using certificate based authentication and connect on demand. ...
0
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0answers
34 views

Getting NETunnelProviderManager to work in Per-App VPN mode

I am trying to experiment with the custom VPN support added in iOS 9.0, in particular the class NETunnelProviderManager. I have gotten the "routing by destination IP" mode working somewhat, and now ...
1
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0answers
47 views

Proper NAT/routing configuration for device-wide iON VPN (using NETunnelProviderManager)

I am trying to set up a VPN server environment to work with the test program provided by Apple called SimpleTunneler, which uses NETUnnelProviderManager introduced in iOS 9.0. For the server portion I ...
0
votes
1answer
73 views

First ping (to any destination) fails from switch but not from router

I've got a basic network setup, just doing NAT to a single public address to an internal /24 without any VLAN's or fancy routing. Both my router and switch are running Cisco IOS 12.x. My ...
1
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0answers
69 views

APN fails for Apple Profile Manager

We have a new Mac on which we configured profile manager from scratch. Were trying to use it as an MDM to push profile settings over the WAN. I have obtained an APN certificate and the server is using ...
0
votes
1answer
46 views

Cisco Aironet 1200 dhcp relay config

It's about 6 years since I last configured an IOS device and I have forgot a lot of it sadly! I got a Cisco Aironet 1200 AP ( IOS (tm) C1200 Software (C1200-K9W7-M), Version 12.3(2)JA2, RELEASE ...
1
vote
1answer
66 views

Filtering even ip address from a router

Is there a way to filter out even(or odd) numbered IP address from passing through a router (I am working with the cisco packet tracer) using access lists or any other methods? Thank You
1
vote
1answer
66 views

invalid password at my Cisco 2961 router

I am going crazy here! I set a password at my router and I can't think of anything that could be wrong! I even saved the configuration before I got locked out of the router, I will share it with you. ...
1
vote
1answer
196 views

Sending IOS .bin file to Cisco 3750 Catalyst Using TeraTerm (xmodem)

I want to Update my Cisco 3750 Catalyst IOS. I don't have a LAN Connection with the Switch,just Console Cable, so I'm using xmodem and Tera Term to send the .bin file to switch. When I go to Tera ...
0
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0answers
17 views

Cisco 1921 ISR K9 with Cisco 2620xm failover

I have a Cisco 1921 ISR and a Cisco 2600 Router (2620xm). The C1921 is the primary router on the corporate network. I would like the Cisco 2600 to connect to a module on the C1921 and provide 2 ...
3
votes
1answer
110 views

Apple Server: “Trust this computer” automatically via Profile manager

I'm trying to figure out if it would be possible to push a "Trusted computers" list to an iOS-device via Profile manager. This to avoid the annoying "Trust this computer?"-dialog when connecting to a ...
0
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0answers
20 views

Cant send large attachments from iOS using Exchange 2013 [duplicate]

Some of my users are having issues sending emails with attachments from iOS devices but the same works fein from desktop versions. There seems to be a link to the size of the attachment, as an example ...
0
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0answers
68 views

softhether VPN server: PPP server not responding

I've created a Softether VPN server on a VPS. Connecting works great (over L2TP) but when I lock my iPhone (and wifi/4G gets disconnected) it sometimes doesn't reconnect. I then get this error message ...
0
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1answer
167 views

LACP - Up Sngl-port-Bndl Mstr Not-in-Bndl

I setup a port channel between two Cisco switches, a 6509 running ios 12.2(17r)S4 and a 5596 running nx-os 5.2(1)N1(4). Several issues arose including bad patches and broken cables, but I currently ...
0
votes
2answers
32 views

How do I know if a specific cisco router and IOS support a certain feature?

The reason I'm asking is I'm trying to set up a Cisco Catalyst 2800 series router as an 802.1x supplicant. According to this document, ...
6
votes
2answers
1k views

How to configure IIS 7.5 SSL \ TLS to work with iOS 9 ATS

Problem: Our mobile app can no longer establish a secure connection to our web-service since iOS 9 now uses ATS. Background: iOS 9 introduces App Transport Security Server Setup: Windows Server 2008 ...
0
votes
1answer
110 views

Cisco switchport is solid amber

I have a port on my switch that is showing a solid amber light. I have tried to shutdown this port, but it still shows the solid amber. This switch is production critical so, I cannot reboot it ...
1
vote
0answers
262 views

CentOS + strongswan + iOS VPN API, hal

I'm trying to setup StrongSwan on CentOS for iOS with VPN API. This API uses IKEv2 protocol. Here is my logs + configuration files. When i press connect in iOS device it's getting off in a few ...
1
vote
1answer
520 views

How to choose VDSL firmware on a Cisco 887VA router?

On Cisco ADSL routers, there is a wide choice of modem firmware releases available, as well as IOS releases; each IOS release comes with its built-in modem firmware, but you can override it with a ...
0
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0answers
25 views

view the maximum equal cost paths configured for OSPF

How do you check if the maximum number of equal cost paths has been modified (with the (config-router)# maximum-paths command)? Is the only way by viewing the running configuration? show ip ospf ...
2
votes
2answers
1k views

WiFi access point without internet access - iOS devices disconnect

I'm trying to configure a WiFi access point to offer a web service on the local network, without offering clients internet access. The web server has a fixed IP address (let's say 192.168.2.2) and for ...
0
votes
0answers
10 views

RADIUS for unique hotspot and iOS clients?

Sorry if stupid questions. I need to be certain. Is Radius needed for a hotspot captive portal, where no login is needed, and which is unique (one only router) ? Is Radiys involved in another thing ...
0
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0answers
237 views

Captive HotSpot, Apple login callback issue

For some days I have been building a Wifi captive hotspot, from scratch. My question concerns Apple. It is working 90%: when I join my Wifi hotspot, the device (iPhone, iPad, Mac) displays a 'fake ...
0
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0answers
117 views

IOS FlexVPN client keeping create child SA every 60s?

I got a flexvpn client with sVTI tunnel interface, but it keeps creating child sa every 60s, like below. The VPN server is a linux Strongswan box, the config works fine in IOS 15.3 but not 15.4+. Any ...
1
vote
1answer
93 views

Cisco Router NAT does not work

I have an active internet connection from provider on festethernret0 and also have vlan1. I need to have an internet connection from festethernret0 to my vlan1. I am doing it this way: access-list 2 ...
0
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0answers
50 views

CISCO IOS NAT existing network into VPN private IP address

I have a CISCO IOS router with two interface, int0 for internal network and int1 for internet. I have site-to-site VPN as below and wondering how can I configure NAT. [192.168.1.0/24] = existing ...
0
votes
1answer
157 views

Port Forwarding with Cisco SR520 IOS

I've been tasked with setting up port forwarding for access to remote desktop on a server. I'm having trouble making it work. Server IP 192.168.1.20, port 3389 The router is a Cisco SR520. It is ...
3
votes
3answers
2k views

Email from IOS with attachments larger than 7.5Mb gets stuck in outbox and constantly tries to resend. Costs us hundreds in data fees

We have an on premise Exchange 2013 server. When sending email with large attachments from ActiveSync accounts on IOS devices, the email gets stuck in the outbox and won't send. It keeps trying to ...
1
vote
1answer
245 views

Download startup config from Cisco device using SCP

I can successfully download the config from Juniper network devices using SCP - I'd like to do the same for a Cisco router. SSH access is already working, and I've enabled SCP using ip scp server ...
1
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0answers
155 views

VTP trunking not working for Cisco 4948 switch

I'm adding a new Cisco 4948 switch to an existing network that has a bunch of 3500 series switches already configured and working. I've verified the VTP domain and password are identical, tried ...
1
vote
1answer
128 views

Cisco Router: ran 'no enable password'; 'enable' still asks for a password

I have a Cisco router (it's hard to access physically so I can't tell you the model) being used as a NAT without a firewall (inside the network in such a way that that does not pose a security thread) ...
0
votes
1answer
863 views

Cisco IOS, Multiple WAN & Port Forwards (Outside -> Inside PAT)

I have been trying to work out how to accomplish PATing from Outside to Inside on a Cisco IOS router, in this case specifically a Cisco 2901 running IOS Version 15.1(4)M1. Firstly, the problem I am ...
0
votes
2answers
178 views

setting up default-gateway on a router

So I've got this weird assignment, where each branch office has to be able to access the main office (and Internet) through a serial connection. Since switches don't have a serial connections ...
-1
votes
1answer
87 views

Cisco Router configuration prompt not working

First of all I am new to Cisco, We are moving from an old T1 to Fiber Optic and I need to configure our Cisco 1841 router to the new IP, DNS, etc. I watch some videos and I get the overall concept ...
1
vote
1answer
1k views

Cisco IOS - terminate a process (kill a process)

How do I terminate a process similarly to kill -9 $PID? I would like to do the same as GNU/Linux offers: For example, a shell is running a Telnet session to a router, but later that router is powered ...
9
votes
3answers
2k views

How to fix Image Swapping Issue in iOS 8 with keep-alive + HTTP Pipe-lining?

Ever since iOS8, the sites I managed are experiencing an intermittent problem in which images are swapping locations with other images. This has been mentioned in a number of places, but with no ...
0
votes
1answer
301 views

c7200 IOS 15.x-x NAT/PAT issue

My problem may be just finger trouble, but after fighting with this for a day on what should have taken 5mins, I am getting fustrated. I am not Cisco Certified at any level, just a fair amount of ...
5
votes
3answers
2k views

How can I automate the deployment of cisco IOS upgrades?

I was googling this and didn't turn up anything. If you have 100 some odd Cisco routers and switches how do you push out new IOS releases? Certain not by manually logging into every device. The only ...
0
votes
2answers
2k views

Why can't I enable SSHv2 on my Cisco 3750X?

It seemed simple enough: use ip ssh version 2. This was the result: 3750xCoreStack(config)#ip ssh version 2 Please create RSA keys to enable SSH (and of atleast 768 bits for SSH v2). ...
-4
votes
2answers
125 views

Cisco 2801 - ACL example to prevent certain users in same subnet from accessing certain devices [closed]

May be a simple answer, but does anyone have an example of an ACL that would prevent certain users (preferably based on MAC address, so that I can not have to deal with static DHCP addressing) from ...
0
votes
3answers
632 views

Is there a Cisco IOS command for finding out the serial number of a switch / router?

I am doing an inventory of all of our switches and I was wondering if there's a Cisco IOS command that will return the serial number for a switch and router? Thanks in advance!
0
votes
1answer
158 views

Filter OSPF routes redistributed by BGP

I am redistributing OSPF routes inside a network, through BGP. However I don't want to redistribute all the advertised routes from OSPF (specificaly the private networks) to the outside of the AS. How ...
1
vote
0answers
88 views

How can one determine what Kerberos key encryption algorithms are supported on a Cisco IOS device?

When attempting to load an SRVTAB over TFTP, I receive an "Unsupported keytype" error: abc(config)#kerberos srvtab remote 1.2.3.4 abc.srvtab Loading abc.srvtab from 1.2.3.4 (via Vlan123): ! [OK - 121 ...