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Cisco Router Cannot Ping Its Own Up Interface


More CCNA Questions TechExams.net - A resource with multiple topics. On FastEthernet interfaces, if status is up and line protocol is up, the router can successfully ping the ip address of its own FastEthernet interface. Put a static route on the host that would be your next hop for the longest subnet (whatever host is on f0/1). The other router routes the packet back. Check This Out

knock off all that eviljoin:2006-05-14Castle Rock, CO Bink Member 2014-Jul-26 10:01 am Is there a cable plugged into FastEthernet0? Last configuration change at 07:15:50 UTC Tue Jul 15 2014 ! upgrade fpd auto version 15.0 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname Webster Apr 19 '13 at 22:46 I've seen instances where PPP interfaces are up/up but they are failing negotiation in some other way, which doesn't allow the interface to If it were serial, it would make sense, as IOS has some interesting caveats for self ping.

Cisco Router Cannot Ping Its Own Up Interface

Big/exciting learning curve for someone who is used to hanging off a shovel ;) Your all legends, cheers permalinkembedsavegive goldaboutblogaboutsource codeadvertisejobshelpsite rulesFAQwikireddiquettetransparencycontact usapps & toolsReddit for iPhoneReddit for Androidmobile websitebuttons<3reddit goldredditgiftsUse Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the I ommitted the SNMP and Crypto portions.

R2 has Network Architecture Routers Networking Setup Mikrotik routers with OSPF… Part 1 Video by: Dirk After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how Close Reply To This Thread Posting in the Tek-Tips forums is a member-only feature. For Serial interfaces, if status is up and line protocol is up, in some cases the router cannot ping its own serial interface IP address.

R1 still sends the packet to R3, but R3 now tells R1 to go back to itself on rep 2Type escape sequence to abort.Sending 2, 100-byte ICMP Echos to Cisco Switch Cannot Ping Itself permalinkembedsaveparentgive gold[–]not_an_ent 0 points1 point2 points 1 year ago(1 child)From the router can you: ping source fa0/0 ? Help Desk » Inventory » Monitor » Community » current community blog chat Server Fault Meta Server Fault your communities Sign up or log in to customize your list. I thought just as you.

Here is the more "readable" steps to take: Textshow int vlan 50 look for: "Vlan50 is administratively down, line protocol is down" If so then: Textconfig t int vlan 50 no The hosts thatcan send traffic to the payroll hosts on network should still be able to send any kind of IP traffic to that network. Is it an anti-pattern if a class property creates and returns a new instance of a class? We need to see the Dialer interface and the NAT config at least.887 physical ports are all Layer 2.

  1. That's why the order is very important.
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  3. this interface is tied to the xDSL interface, IIRC.You'll also want to "no shut" your ATM0 interface as well.What IP address and subnet mask is assigned to your PC plugged into
  4. can you ping that gateway.
  5. CCNANetwork Admin RE: Cant ping local router int from router burtsbees (Programmer) 21 Nov 08 19:29 Come to think of it, I had a similar problem with a dialer interface---di0 would
  6. thanks i was just trying to add a layer of clarity to the topic.

Cisco Switch Cannot Ping Itself

All your other interfaces are shutdown and cannot pass traffic. First Name Please enter a first name Last Name Please enter a last name Email We will never share this with anyone. Cisco Router Cannot Ping Its Own Up Interface We wish to limit access to the payroll systems onnetwork to the following hosts:, (and no other host on network, and any remaining host in network Are you aComputer / IT professional?Join Tek-Tips Forums!

There on two separate subnets 172.28.38.X/16 and 172.28.38.X/24I thought it was just me going crazy because I can't see what is wrong... his comment is here your layer 2 "connection" or pvc is to the remote fr switch. See More 1 2 3 4 5 Overall Rating: 0 (0 ratings) Log in or register to post comments Carlton Patterson Tue, 12/18/2012 - 09:10 John,Yes I can ping myself if permalinkembedsavegive gold[–]Aussie_CrawlMCP, CCNSP 0 points1 point2 points 1 year ago*(0 children)With a question like this you need to post your running config.

I have ADSL2+ with Annex M.Router#sh config Using 1631 out of 262136 bytes ! ! If so does that machine have a default gateway and are you using a crossover cable? Removing the line above might fix it because a static route always takes precedence over a learned route. 1 Serrano OP StPaddy Feb 6, 2015 at 8:57 UTC http://outwardsound.com/cannot-ping/cannot-ping-cisco-switch-from-pc.html permalinkembedsavegive gold[–]doyley231[S] -1 points0 points1 point 1 year ago(1 child)please elaborate :) permalinkembedsaveparentgive gold[–]flimspringfieldCCNA 2 points3 points4 points 1 year ago(0 children)i.e.

You can put a static on that host for pointing to it's next hop to get back to this router. The router does not forward the ICMP messages physically out the interface, so security features on neighboring switches (like port security) or routers (like ACLs) cannot possibly filter the messages used Good tip!

Do a "show ip route" and post your results. 0 1 2 Next ► This discussion has been inactive for over a year.

Covered by US Patent. in extended ping command give source ip 0 LVL 10 Overall: Level 10 Networking 8 Hardware Firewalls 3 Networking Protocols 2 Message Expert Comment by:srgilani2006-09-24 Comment Utility Permalink(# a17589803) See More 1 2 3 4 5 Overall Rating: 0 (0 ratings) Log in or register to post comments Carlton Patterson Tue, 12/18/2012 - 09:38 I'm not sure, but I think Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Either should get the vlan to come to an "Up" status.  Yes, thanks I'm proud of my Alma Mater.That worked!  I don't understand why though.  Can you break it down for By joining you are opting in to receive e-mail. When you ping, the router looks at the routing table and notices that is the more specific match and tries to send it out Fa0/1 to R2.Also, being that navigate here Quote darkuser Senior Member Join Date Jun 2005 Location NJ Posts 635 Certifications A+,N+,I-net+,S+ Subject Matter Expert, CCNP,DP,SP, OSWP, CISSP#30711,CRISC,OSWP,GSEC,GCIH 05-14-200703:40 AM #12 i feel you man .....

MenuExperts Exchange Browse BackBrowse Topics Open Questions Open Projects Solutions Members Articles Videos Courses Contribute Products BackProducts Gigs Live Courses Vendor Services Groups Careers Store Headlines Website Testing Ask a Question If so, have you saved your configs and tried to restart gns/dynamips?HTH, John *** Please rate all useful posts *** See More 1 2 3 4 5 Overall Rating: 0 (0 Join and Comment By clicking you are agreeing to Experts Exchange's Terms of Use. Join and Comment By clicking you are agreeing to Experts Exchange's Terms of Use.

think about it ... permalinkembedsavegive gold[–]edgelesscube 1 point2 points3 points 1 year ago(0 children)Your interface f0/1 has no layer 2. RIP, OSPF, or EIGRP. Web of Trust collects data [Security] by ZZZZZZZ351.

It's doing absolutely nothing. However, it doesn't explain why I can't myself...... you can verify layer2 is working by sh fram map and sh fram pvc. Search form Search Search LAN, Switching and Routing Cisco Support Community Cisco.com Search Language: EnglishEnglish 日本語 (Japanese) Español (Spanish) Português (Portuguese) Pусский (Russian) 简体中文 (Chinese) Contact Us Help Follow Us

You might want to try rebooting the Adtran - been there, done that, way too many times Go to Solution 6 6 2 +3 6 Participants pjtemplin(6 comments) LVL 12 Networking7 I can ping from it though. There is no special treatment for RFC1918 addresses; "public" addresses can route to "private" and vice versa because they're all just addresses. I guess my understanding of ICMP is not as good as I thought.

some say its not connected, others say its because of more specific routes ....