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Cisco Dialer and ATM interface setup
I have put together some examples of an ATM, and Dialer interface with virtual dialer interface (as preffered by Cisco)
My device is a 2621xm + ADSL WIC. I shall post a full excerpt from the config:
alex@STUDIO17:~$ telnet 192.168.1.254
Trying 192.168.1.254…
Connected to 192.168.1.254.Escape character is ‘^]’.User Access VerificationUsername: alexPassword:C2621XM>enPassword:C2621XM#sh runinterface Loopbackno ip address!interface ATM0/0no ip addressno atm ilmi-keepalivedsl operating-mode autopvc 0 0/38encapsulation aal5mux ppp dialerdialer pool-member 1!!interface FastEthernet0/0ip address 192.168.0.254 255.255.255.0ip virtual-reassemblyduplex autospeed auto!interface FastEthernet0/1ip address 192.168.1.254 255.255.255.0ip nat insideip virtual-reassemblyduplex autospeed auto!interface Virtual-Template1ip unnumbered Loopback0ip virtual-reassemblypeer default ip address pool VPNppp encrypt mppe 128ppp authentication ms-chap-v2interface Dialer1ip address negotiatedip mtu 1432ip nat outsideip virtual-reassemblyencapsulation pppdialer pool 1dialer-group 1ppp authentication chap callinppp chap hostname YOUR ISP HOST HEREppp chap password YOUR HASHED PASSWORD HEREcrypto map SITEMAPip local pool VPN 192.168.2.1 192.168.2.254ip classlessip route 0.0.0.0 0.0.0.0 Dialer1!
Detailed explanation and configuration of each:
First we will take the physical interface at ATM0/0:
you will of cource need to configure this with the ‘conf t’ command (to configure terminal) and then enter the interface with the ‘int atm0/0′ command. then you will be able to type out the lines nescesary:
C2621XM#conf tEnter configuration commands, one per line. End with CNTL/Z.C2621XM(config)#int atm0/0C2621XM(config-if)#C2621XM(config-if)#no ip addressC2621XM(config-if)#no atm ilmi-keepaliveC2621XM(config-if)#dsl operating-mode autoWe will now need to enter PVC and enter your VPI and VCI (I have used 0/38)Next I will put in my encapsulation method under this and then follow that up by giving and entering my dialer pool, before exiting the confC2621XM(config-if)#pvc 0 0/38C2621XM(config-if-atm-vc)encapsulation aal5mux ppp dialerC2621XM(config-if-atm-vc)#dialer pool-member 1C2621XM(config-if-atm-vc)#exitC2621XM(config-if)#exitC2621XM(config)#Now that we have finished with ATM0/0, we will have a look at dialer1C2621XM(config)#int dialer1C2621XM(config-if)#ip address negotiatedC2621XM(config-if)#ip mtu 1432C2621XM(config-if)#ip nat outsideC2621XM(config-if)#ip virtual-reassemblyC2621XM(config-if)#encapsulation ppp (ppp over atm)C2621XM(config-if)#dialer pool 1C2621XM(config-if)#dialer-group 1C2621XM(config-if)#ppp authentication chap callinC2621XM(config-if)#ppp chap hostname (your username here)C2621XM(config-if)#ppp chap password (your password here)C2621XM(config-if)#crypto map SITEMAPC2621XM(config-if)#exitC2621XM(config)#I do not use my FastEthernet0/0 port, hence I have configured all traffic from my Router to a switch connected to the FastEthernet0/1 port.C2621XM(config)#interface FastEthernet0/1C2621XM(config-if)#ip address 192.168.1.254 255.255.255.0C2621XM(config-if)#ip nat insideC2621XM(config-if)#ip virtual-reassemblyC2621XM(config-if)#duplex autoC2621XM(config-if)#speed autoC2621XM(config-if)#exitC2621XM(config)I have an outside rule as follows for outgoing traffic, and a NAT binding from the dialer for the incoming trafficC2621XM(config)#ip route 0.0.0.0 0.0.0.0 Dialer1C2621XM(config)#ip nat inside source route-map NAT interface Dialer1 overloadFinally you can save the runtime and test your connection:C2621XM(config)#exitC2621XM#copy run startDestination filename [startup-config]?Building configuration…[OK]C2621XM#
Please excuse any errors or non-factual comments, I am still learning Cisco. However I was able to use the steps above to get my internet connection going!
Please comment if you have any suggestions, or questions
EDIT! I have spent the last 3 days trying to figure out why my internet connection speed was OK on my standard Thomson ADSL Router and appeared to be capped at 2.3Mbps on my Cisco ADSL WIC. I tried all sorts, changing the method that the router negotiates with the DSLAMs at the ISP end.
Xilo broadband have been very attentive and patient with me while I logged fault calls before any of the testing
Through some extensive research and reading, it turns out that there are some additional commands that I needed to give for my ATM0/0 interface as follows:
The following is an aditional configuration of SCC clock rates on the ATM interface. Clock rates are set with the clock rate aal5 command and the clock rate aal2command.
interface ATM0/0
clock rate aal5 5300000
clock rate aal2 4000000
dsl operating-mode auto
This has helped massively and has made the connection even better than I could have expected.
Hope this helps anyone having specific problems with similar equipment
on a side note Xilo / UNO broadband for the win! its a refreshing change to have a constant and reliable internet connection and top notch support 24/7
Alex
WordPress mono-lab black theme bug-fix for IE8
A friend of mine runs a well established blogging site at www.d0tk0m.com. He has been experiencing some problems with some of the CSS on his site.
I decided to take a look to see if this could be rectified. There were two initial complaints;
- When viewing the site in IE8 there was a huge scrollbar on the horizontal axis.
- When using IE8 there were problems with the Syntax Highlighter (the view source button and print buttons etc are all over the place)
After downloading the site I took a look at the main background CSS style sheet located here:
/wp-content/themes/pianoblack/style.css
I then started troubleshooting by commenting out various CSS until I found one that did the trick. I also found that it made no noticable style changes to the site:
code snippet
Hey presto, the issue was fixed.
I have not looked into the issue with the syntax hi-lighter, but may have found the issue. Will keep updating this post with the findings. In the CSS for this issue, there are some author comments to show compatibility for IE8 / 7:
Comments Welcome
Windows 7 FAIL
Genuine Windows 7 FAIL. press the back arrow? there is no back arrow!
FAIL
