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Hi, I am having trouble locking down inbound SMTP traffic to a group of IP address, the issue is.... previously I have successfully used the same code (see below) on about six routers, but for some reason the code does not work on the new router. The only difference I can think of is.... the...

Hi, I current have an email server that: 1) Receives email using the SMTP extended protocol on port 25 from only a certain group of IP addresses. 2) Hosts web mail using the HTTPS protocol on port 443. Device: cisco 877 (C870-ADVIPSERVICESK9-M), Version 12.4(24)T1 Current working code below...

Hi, pretty much the title says it all. Is it possible to run HSRP while using the zone based firewall or do you have to use CBAC? Two routers I will be using: 881 and 877. The only info I could find was a bit confusing. see below... "Note: High Availability Stateful Failover supports only...

Hi, based on the config below (correct me if its wrong) we currently port forward all SMTP extended traffic from any IP address only if it is addressed to our email server. hardware: cisco 877 ADSL router IOS: C870-ADVIPSERVICESK9-M, Version 12.4(15)T9 ip nat inside source static tcp...

I am trying to setup a GRE IPSec tunnel between two sites. Note. WAN IP are made up. hense the 259.... Site 1 ====== cisco 877 with Advanced IP Services VLAN1=172.16.0.0 / 16 Site 2 ====== cisco 877 with Advanced IP Services VLAN1=192.168.30.0 / 24 The VPN LED on the 877's light up after I...

I want to set up a router on a stick between a 1801 router an 2950 switch. Looking at the router it has: - ADSL over POTS - 8 port switch - 10/100FE WAN port Does the 10/100FE WAN port have to used as a WAN port? Or can it be used for what ever I want it to... like a layer 3 LAN port for...

I'm not sure how to setup VLANs with a zone based firewall: Scenario -------- On the network there are: 1) Common devices that all VLANs need access to (printers, scanners ...) 2) Servers that only some VLANs need access to (sales, admin, production ...) 3) Guest VLANs that should only...

I have an 877 router with 4 switch ports, all in VLAN 1 and I'm unsure how VLAN 1 relates to the ATM WAN interface. ie. Its clear if a router two layer 3 interfaces (ATM or fast ethernet on the WAN side and a fast ethernet on the LAN side) because they are both level 3 and they can both have...

1) Why do switches need to have a default gateway if they work at OSI level 2? 2) What is the purpose of VLAN's having an IP address? Is it purely so administrators can have remote access to the switch? Is there any other reason? ie. VLAN 1 IP = 172.16.0.1 / 16 VLAN 2 IP = 172.17.0.1 / 16...

Equipment I have: 1) ADSL 877, advanced ip security, 4 switch ports. 2) 2950 switch with cisco standard lan image. Aim: 1) link the 877 and 2950 together 2) Create about 8 vlans on the 2950 which cannot see each other, but can browse the internet. Problem: 1) I'm a bit stupid. 2) The 877...