0
votes
0answers
21 views

Is it possible to hairpin on Cisco 851W IOS 12.4(15)T9 and how?

I need machines on the LAN to be able to access by the external address or hostname. If it can't be done, then just by hostname is OK as well, so I thought of just doing it through DNS on our internal ...
-2
votes
1answer
78 views

Dead-simple Juniper firewall hairpinning [closed]

I have a SRX100 firewall running JunOS 12.1. I have a WAN interface proxy ARPing ten or so static routable IPs. I have a LAN interface on a simple class-C subnet (we'll call it 192.168.0.x). I'm using ...
4
votes
1answer
885 views

How do you NAT Hairpin in IOS 8.3+

As I asked here and duplicated here it appears NAT Hairpinning is the answer I'm looking for to allow internal servers to loopback through the ASA to access external IP's (without using DNS ...
1
vote
0answers
233 views

Default Gateway solution on NAT'd network (best options)

I've recently changed a network from a bunch of machines exposed to the net on a network to a more security conscious Firewall-fronted network with a DMZ for public services. Everything's mostly ...
5
votes
1answer
373 views

Setting Up NAT Hairpinning to Connect to Site from an Internal IP Address

We use a WordPress plugin that checks for broken links. It uses cURL to do this. External links work fine but internal ones, not so much. The connection is refused. Talked to our host about this and ...
2
votes
2answers
437 views

Bastion Firewall Host ipTables Redirect Question

Some background: A firewall has been constructed using RH Fedora 13, Kernel 2.6.34.7-63, and IPTables 1.4.7. The firewall is a simple, twin adapter configuration, with the external interface (eth0) ...
2
votes
3answers
487 views

Port Forwarding

Assuming port forwarding is done on router, can the router forward if the data is coming from local machine, rather than remote. For example: Sender targets ip like:88.251.xxx.xxx, port 8999. ...