I managed to narrow down my question to this.SOCKS5 proxy is able to handle both TCP and UDP transport protocols.If I have IPinIP encapsulated tunnel, will this work?
in other words, does SOCKS5 expect Layer 4 header immediately after Layer 3 header or not?
I have a curious issue on a customer site where the above components are installed.The issue being that the iPhones the users utilise cannot connect to the mail server via WiFi, they are forced to connect with their 3G connection. The core issue seems to be the 887VA, as when I've installed 'lesser' branded ADSL routers, the connection seems to be fine.The iPhones are set to access the mail server via the URL: mail.customer.com. Should I change this to the internal IP of the server 192.168.12.200, the mail connection works fine. However I cannot expect the client to make this change every time they arrive or leave the office. Presently I have them disable WiFi when on premises.
View 1 Replies View RelatedI want to setup VLAN with the switches SG300 and SLM2024. What is the suggestion to connect these 2 switches. We have the Juniper net screen.
View 1 Replies View RelatedI have a question if I Stack a Catalyst 3750 L3 with a Catalyst just L2, will we able to use all L3 capabilities?
Switches are
WS-C3750G-24TS-E1U
WS-C3750V2-24PS-S
Actually i want to trap the e-mail sender's mac address using his ip from header of e-mail ID... isn't that possible...??
View 1 Replies View RelatedHow to find OS and browser of sender using email header?
View 1 Replies View RelatedI have an ACE version A5.2 configured in one-armed leg (doing source nat). I have a requirement to add(or copy) the "referer" header value from the original request to the request send by ACE.
I cannot figure out how to copy this value. It is easy to add the source ip address by adding: " insert-http x-forwarded-for header-value "%is".
So how I am going to copy the Refere header?
#Referer
#Address (URI) of the resource from which the URI in the request was obtained
I created several rules to balance on a specific server somes apps. Everythings works great in http but no in https.In my example, i would like [URL] to be redirected to my server2 but it's always using the default rules instead of the L7CLASSSrv2. Today [URL] is well redirected. All other apps are correctly loadbalance with the stickyness effect but I can't handle the https connections.
class-map match-all L4-WEB-IP
2 match virtual-address xxxx tcp eq www
class-map match-all L4-WEBHTTPS-IP
2 match virtual-address xxxx tcp eq https
class-map type http loadbalance match-any L7CLASSSrv1
[code]....
We are using Cisco ACE 4710 to load balance servers. We have created VIP under the interface vlan using nat-pool command. Also, we have changed the gateway of the server to point to the ACE vlan ip address which is created using alias 10.x.x.x 255.x.x.x command under the interface vlan. In short ACE is in inline mode for the servers which needs to be load balanced.
[code]...
But still I am not able to view the original client IP. Just to add more, the site is a HTTPS site & we have not doing any kind of SSL offloading on the ACE, it is taken care by server itself
I just want to do the HTTP & HTTPS load balancing without SSL offloading & should be able to see the original client IP in the server logs
Is there a way to convert TCP options header into an http header using Cisco ACE ? is there an equivalent solution with Cisco as the one proposed by F5 here: url.
View 7 Replies View RelatedWe have an ASA Version 8.0(5)19 as our firewall.We are trying an cloud service on the internet and found that the ASA is removing the X-Forwarded-For on the header on the surf traffic.Is it possible to not remove the X-Forwarded-For in ASA?
View 3 Replies View RelatedWe are migrating from ACE 20 module to an ACE 4710 appliance. [code] When pasting in the config on the ACE 4710 running A4(2.1) code, I get the subject error message when trying to enter in the highlighted sticky-serverfarm command above. Again, this config works on the older hardware and older code.
View 1 Replies View RelatedOne of my customer has raised a new requirement for implementation of short sequence number format support in PPP multilink header for Cisco MWR 2941 E1/T1 serial interface, whereas router is supporting long sequence number format.here is the output of "debug ppp negotiation" command:-Currently in the MWR debugging logs we can see that by default MWR is sending long sequence header format as below
*Mar 13 01:32:55.438: Se0/2:0 LCP: O CONFREQ [REQsent] id 238 len 25
*Mar 13 01:32:55.438: Se0/2:0 LCP: MagicNumber 0x26CDF693 (0x050626CDF693)
*Mar 13 01:32:55.438: Se0/2:0 LCP: MRRU 1500 (0x110405DC)
*Mar 13 01:32:55.438: Se0/2:0 LCP: EndpointDisc 2 16.16.16.11 (0x1307021010100B)
*Mar 13 01:32:55.438: Se0/2:0 LCP: MultilinkHdrFmt seq long classes 2 (0x1B040202)
While as per the requirement PPP multilink header should support short sequence.
MWR configuration:
controller E1 0/2
framing NO-CRC4
clock source line
channel-group 0 timeslots 1-31
[code]....
My 2811 sip gateway send invite to my ITSP server with incorrect IP address in Contact section. It uses the internal ip address instead of using the public ip. As results, the re-invite sent back from ITSP sip server cannot be recieve. Could some tell how to change the ip address in Contact section of the invite message.
View 6 Replies View RelatedI am taking an introduction class to CCNA and we are focusing on the Application Layer,and I'm having some difficulty in understanding what is an Application Layer Service. Is the Application Layer Service the same as Application Layer Software?
View 3 Replies View RelatedHere is a second paragraph from official BCMSN book page 93:
View 6 Replies View RelatedI have :
- two different subnets (S1, S2)
- these subnets are connected to an IP backbone via wirelles acces points
I would like to physically connect these subnets together so the networks devices in S1 could directly communicate with the devices in S2 and vice versa without going through the backbone.
The obvious solution seems to interconnect these subnets with a router or a switch L3. But I would like to connect these subnets and stay at layer 2.
So, is it possible to connect S1 and S2 with a switch L2 ? If I do that, what is going to happen? Can I create just one subnet S3 from this two subnets when I connect them together and have my two separate subnets back as soon as I disconnect them?
SM-ES3-16-P works as a layer 3 module which means that the uplink which connects to router ( Internally ) is a layer 3 interface . Is there a way we can use it as a layer 2 switch and connect the uplink as a trunk port ?
View 1 Replies View RelatedI need a ≥ 8 port layer 3 managed switch. What would be the cheapest solution for this?I've been looking at some stuff like Cisco 4908G, but that only supports 1000base-X. I need something that supports the standard 1000base-T. I've also looked at a Cisco WS-C3508G-XL-EN, but correct me if I'm wrong, this is only layer 2?
View 11 Replies View Relatedi am trying to do EoMPLS using microwave as my Layer 1. i am doing the same thing using Fiber as my layer 1 and it is working. the minute i use microwave its not working. the EVC will be showing as up, but no traffic will be moving. i am using 2 3750Metro series swicthes. i have tries to tweek the MTU to be above 1500 and below 1500 but nothing is working. LDP is establishing, OSPF is working, but the EVC is just not forwadign traffic from end to end.
View 4 Replies View RelatedData link-ARP,RARP, presentation-SSL,TSL,ASCII,JPG, Session layer-ASP(apple talk session protocol),SCP are these correct?can your provide 2 new protocols for each with the long name?
View 17 Replies View Relatedwhich OSI layer is responsible for error correction nd which method is use for it..as far i have studied i thnk data link layer perform both error detection and correction..?
View 6 Replies View RelatedI have a question about QoS and how, or if, it functions between a layer 2 switch and a router. My question is, can a frame's COS sent from a layer 2 switch to a router be recognized and converted (mapped) to a DSCP setting without the use of a vlan (not the native vlan1), and can the reverse be done from a router to a layer 2 switch? Can QoS be preserved as it passes through the different devices? I know, pretty basic, but I have to start somewhere.
View 12 Replies View RelatedI am looking for a certified (e.g. by the ITU) traffic model for the OSI layer 3 & 4. (TCP/IP). If there are definitions for different kinds of traffic, like idle-traffic (protocol only), surfing, file-transfer and all these mixed up.The reason why i am looking for it is that i am actually working at my bachelor thesis and need to simulate network traffic and its behaviour in/at a router. In particular i want to simulate the RTO (retransmission timeout) of a router with "realistic" traffic.
View 12 Replies View RelatedWhy layer 2 switches need its mac address, even it does not have any interface ? (does not have stp and etc)
View 8 Replies View Relatedcan i use normal two L3 Switch(3560) for BGP Multihoming with 2 different isp
View 4 Replies View RelatedI'm looking to get a layer 3 managed switch. The HP we currently have only does layer 2.I'm looking at a HP v1910-24g. It has 24 10/100/1000 ports and looks to be layer 3 as well.It looks like they can be had for around $350.Anything different I should be looking at with similar specs? Any issues with the v1910-24g?
View 19 Replies View RelatedN5K will be running on Layer 2 mode. vPC configured between N5K and N2K Servers are part of Vlan 10, 20, 30 and Juniper SRX firewall is the gateway for all the servers. SRK firewall is Active/Standby mode.
Questions are
1) Is there any non-vPC link required between N5K in this scenario?
2) N5K will pass in/out traffic to juniper SRX firewall durining SRX failover as well as normal operation
What does a firewall block at the transport layer?
View 1 Replies View RelatedI know I can bring up a tunnel up-and-up without any layer 3 address, without any ipv4 or ipv6 address (apart from tunnel source/destination of course). And I don't have to use "ip unnumbered <interface>" either. But what good is a tunnel interface with no address? Can you bridge them or something?
View 5 Replies View RelatedI have two MLS conected by 2 fast ethernet links f0/11 and f0/12 on both sides.I am trying to set up a layer 3 etherchannel using these two links . But when i see etherchannel summary, they dont show up as layer 3. Instead they show as layer 2.
View 19 Replies View RelatedWith most of my Layer2/Layer3 switches, I'm accustom to giving them a SVI on my management VLAN, and calling it a day. I can't find in the Cisco Nexus guides how to do something similar; everything points to the mgmt0 physical interface, which seems like I need to uplink it to an access port on another switch. Can somebody point me in the right direction for how to do give the Nexus an IP that I can ssh/snmp into it across a trunk for management? I must just be missing the keyword.. NX-OS is still quite a different beast.I see in the manual it says: "SSH has the following prerequisites: You have configured IP on a Layer 3 interface, out-of-band on the mgmt 0 interface or inband on an Ethernet interface." Cisco Nexus 5000 Series Switch CLI Software Configuration Guide page 284, How do I configure an IP on a Layer 3 interface on a Nexus?
View 16 Replies View RelatedI just inherited a network and feel like.I am missing something. We use ATT&T Opt-E-Man which limits the MAC address to 50 for the connection or you have to pay.Hence the routing VLAN is the only access across the two sites.I have a VoIP vendor who insists on using the same VLAN for all sites. Upon exam the VLAN is at the remote site but it does not work.
View 2 Replies View Related