We are attempting to use the NAT box-to-box high availability functionality that replaced the HSRP-based NAT failover in IOS 15.3. Unless we are doing something wrong it appears the routers respond for NAT'ed IP addresses with their physical MAC addr...
Routing
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Forum Posts
Resolved! ISR: publish FTP server in passive mode
Hi,the problem is to make an FTP server in an internal network to be available from the outside (see picture below). Router (ISR 2921 G2) is configured with NAT. There is a static translation mapping:ip nat inside source static tcp 192.168.1.2 21 1....
We're having trouble applying the combination of WCCP redirection of Citrix traffic to a Citrix Cloudbridge WAN accelerator appliance, and applying Policy/Class to protect a few Mbits of Citrix traffic outbound via the WAN interface. We originally w...
We have 2960X's running 15.2(3)E with high CPU usage (75%/27%) Switch Ports Model SW Version SW Image------ ----- ----- ---------- ----------* 1 52 WS-C2960X-48FPS-L 15.2(3)E...
Resolved! BGP routing issues on Cisco 3850
Hi, I've got a strange situation where a stack of 3850s (2x) is not forwarding L3 packets from directly attached networks via BGP but forwards packets from at least one hop away.I have BGP routing running on these switches and BGP seems to work just ...
Resolved! Dual ISP SSH at same time
Hello everyone. I have two ISP in branch office. Both connected through Cisco 881 router.I looking config example which allow connect via SSH through primary and second ISP at the same time. i wanna ICMP and telnet too. i think it is must be PBR. May...
Hi , CPE <--------------> DSLAM -------------> BRAS Once PPPoE/PPP LCP and NCP negotiations are done , CPE and BRAS know each others MAC addresses. When a data packet encapsulated in PPP/PPPoE is sent from CPE , it will have Source MAC (say SrcMAC1)...
Hello I upgraded version from 12 to 15. I have 2 questions. 1. After upgrading, I saw the device which is upgraded to 15 version. But, I also saw the bootloader which is still left 12. I think if bootloader and IOS are not same, device does not perf...
I have my ISP connected to an 871 router. I need to port foward all ports all ports upd from two IP's to an internal IP. I will also be port forwarding a range of tcp ports. so 1.1.1.1 and 1.1.1.2 ->(all ports UDP and some TCP ie 5060) -> 192.168....
Hi Guys, I never did this implementation before, Currently the company WAN is connected to Cox thru BGP, but I want to fail over to ATT when Cox fails. How can I do that. Right now ATT just deliver the router for the fail over. It looks my router n...
I am not a network engineer and this is the first Cisco router that I have purchased. I found it on Amazon for a really good price and bought it. I plugged it in and realized that none of the ports were active, except for the WAN ports. The version t...
Hi everybody, I am facing one challenge since this morning by installing HWIC-2CE1T1-PRI on my cisco router 3825. So after installation of the card, i power on the router but in ''show diag'' the card is not appear, same thing even by trying to move...
I have a small 871 router and my ISP is giving me a /29 but I only have one WAN interface. What would be the easiest solution to split that /29 using the 871 which has some QoS setting on their. The 871 has 1WAN and 4 LAN ports. I would like ports ...
Hi team. I've dug though lots of these forums about my problems and most of the replys are years old so wanted to get a fresh set of eyes looking at this. We have regional stores that use 2911 with FXO ports. I have one conneted to a BT pots line t...
Greetings, I have a question regarding summary-only option within the aggregate-address statements. Here is my layout: [INTERNET] | | [ISP 1] [ISP 2] | | [Loc 1]------...
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